|Easton's Bible Dictionary|
The usual length of a day's journey in the East, on camel or horseback, in six or eight hours, is about 25 or 30 miles. The "three days' journey" mentioned in Exodus 3:18 is simply a journey which would occupy three days in going and returning.
Int. Standard Bible Encyclopedia
jur'-ni (derekh yom, Genesis 30:36 Numbers 10:33; Numbers 11:31; hemeras hodos, Luke 2:44): The common way of estimating distances in the East is by hours and days. This is natural in a country where roads are mere bridle paths or non-existent, as in the desert. The distance traveled must of course differ largely according to the difficulties of the way, and it is more important to know where night will overtake the traveler than the actual distance accomplished. A day's journey is now commonly reckoned at about 3 miles per hour, the distance usually covered by a loaded mule, the number of hours being about 8. Hence, a day's journey is about 24 miles, and this may be taken as a fair estimate for Bible times.
SABBATH DAY'S JOURNEY
jur'-ni (sabbatou hodos): Used only in Acts 1:12, where it designates the distance from Jerusalem to the Mount of Olives, to which Jesus led His disciples on the day of His ascension. The expression comes from rabbinical usage to indicate the distance a Jew might travel on the Sabbath without transgressing the Law, the command against working on that day being interpreted as including travel (see Exodus 16:27-30). The limit set by the rabbis to the Sabbath day's journey was 2,000 cubits from one's house or domicile, which was derived from the statement found in Joshua 3:4 that this was the distance between the ark and the people on their march, this being assumed to be the distance between the tents of the people and the tabernacle during the sojourn in the wilderness. Hence, it must have been allowable to travel thus far to attend the worship of the tabernacle. We do not know when this assumption in regard to the Sabbath day's journey was made, but it seems to have been in force in the time of Christ. The distance of the Mount of Olives from Jerusalem is stated in Josephus (Ant., XX, viii, 6) to have been five stadia or furlongs and in BJ, V, ii, 3, six stadia, the discrepancy being explained by supposing a different point of departure. This would make the distance of the Sabbath day's journey from 1,000 to 1,200 yards, the first agreeing very closely with the 2,000 cubits. The rabbis, however, invented a way of increasing this distance without technically infringing the Law, by depositing some food at the 2,000-cubit limit, before the Sabbath, and declaring that spot a temporary domicile. They might then proceed 2,000 cubits from this point without transgressing the Law.
And in some cases even this intricacy of preparation was unnecessary. If, for instance, the approach of the Sabbath found one on his journey, the traveler might select some tree or some stone wall at a distance of 2,000 paces and mentally declare this to be his residence for the Sabbath, in which case he was permitted to go the 2,000 paces to the selected tree or wall and also 2,000 paces beyond, but in such a case he must do the work thoroughly and must say: "Let my Sabbath residence be at the trunk of that tree," for if he merely said: "Let my Sabbath residence be under that tree," this would not be sufficient, because the, expression would be too general and indefinite (Tractate `Erubhin 4:7).
Other schemes for extending the distance have been devised, such as regarding the quarter of the town in which one dwells, or the whole town itself, as the domicile, thus allowing one to proceed from any part of the town to a point 2,000 cubits beyond its utmost limits. This was most probably the case with walled towns, at least, and boundary stones have been found in the vicinity of Gaza with inscriptions supposed to mark these limits. The 2,000-cubit limits around the Levitical cities (Numbers 35:5) may have suggested the limit of the Sabbath day's journey also. The term came to be used as a designation of distance which must have been more or less definite.
Day's (19 Occurrences)
Matthew 6:34 Therefore don't be anxious for tomorrow, for tomorrow will be anxious for itself. Each day's own evil is sufficient. (WEB RSV)
Luke 2:44 but supposing him to be in the company, they went a day's journey, and they looked for him among their relatives and acquaintances. (WEB KJV WEY ASV BBE DBY WBS YLT NAS RSV)
Acts 1:12 Then they returned to Jerusalem from the mountain called Olivet, which is near Jerusalem, a Sabbath day's journey away. (WEB KJV ASV BBE DBY WBS NAS RSV NIV)
Acts 19:40 For indeed we are in danger of being accused concerning this day's riot, there being no cause. Concerning it, we wouldn't be able to give an account of this commotion." (WEB KJV WEY ASV BBE WBS NAS NIV)
James 2:15 If a brother or a sister is without clothing and in need of the day's food, (BBE)
Revelation 6:6 I heard a voice in the midst of the four living creatures saying, "A choenix of wheat for a denarius, and three choenix of barley for a denarius! Don't damage the oil and the wine!" (See NIV)
Genesis 33:13 But Jacob said, My lord may see that the children are only small, and there are young ones in my flocks and herds: one day's over-driving will be the destruction of all the flock. (BBE)
Exodus 5:13 And the overseers went on driving them and saying, Do your full day's work as before when there were dry stems for you. (BBE)
Exodus 16:4 Then said Yahweh to Moses, "Behold, I will rain bread from the sky for you, and the people shall go out and gather a day's portion every day, that I may test them, whether they will walk in my law, or not. (WEB JPS ASV BBE NAS RSV)
Leviticus 23:37 These are the appointed seasons of the LORD, which ye shall proclaim to be holy convocations, to bring an offering made by fire unto the LORD, a burnt-offering, and a meal-offering, a sacrifice, and drink-offerings, each on its own day; (See NAS)
Numbers 11:31 A wind from Yahweh went out and brought quails from the sea, and let them fall by the camp, about a day's journey on this side, and a day's journey on the other side, around the camp, and about two cubits above the surface of the earth. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
1 Kings 8:59 And let these my words, wherewith I have made supplication before the LORD, be nigh unto the LORD our God day and night, that He maintain the cause of His servant, and the cause of His people Israel, as every day shall require; (See NIV)
1 Kings 19:4 But he himself went a day's journey into the wilderness, and came and sat down under a juniper tree: and he requested for himself that he might die, and said, "It is enough. Now, O Yahweh, take away my life; for I am not better than my fathers." (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
1 Chronicles 16:37 So he left there, before the ark of the covenant of Yahweh, Asaph and his brothers, to minister before the ark continually, as every day's work required; (WEB KJV JPS ASV DBY WBS NAS NIV)
2 Chronicles 8:14 And he appointed, according to the ordinance of David his father, the courses of the priests to their service, and the Levites to their charges, to praise, and to minister before the priests, as the duty of every day required; the doorkeepers also by their courses at every gate; for so had David the man of God commanded. (See NIV)
Esther 9:13 Then Esther said, "If it pleases the king, let it be granted to the Jews who are in Shushan to do tomorrow also according to this day's decree, and let Haman's ten sons be hanged on the gallows." (WEB KJV JPS ASV DBY WBS RSV NIV)
Proverbs 27:1 Do not make a noise about tomorrow, for you are not certain what a day's outcome may be. (BBE)
Proverbs 31:15 And she riseth while it is yet night, and giveth meat to her household, and the day's work to her maidens. (DBY)
Jonah 3:4 Jonah began to enter into the city a day's journey, and he cried out, and said, "Yet forty days, and Nineveh shall be overthrown!" (WEB KJV JPS ASV BBE DBY WBS NAS RSV)