|Noah Webster's Dictionary|
(p. pr. & vb. n.) of Convince.
Convincing (2 Occurrences)
Acts 1:3 to whom also he did present himself alive after his suffering, in many certain proofs, through forty days being seen by them, and speaking the things concerning the reign of God. (See NAS NIV)
2 Timothy 3:16 Every Scripture is inspired by God and is useful for teaching, for convincing, for correction of error, and for instruction in right doing; (WEY)