“Repent ye therefore, and be converted, that *your sins may be blotted out*, when the times of refreshing shall come from the presence of the Lord; ” Acts 3:19 KJV In the ancient world, ink did not have acid in it and did not bite into the parchment; it could easily be wiped away with a damp sponge. Peter uses this vivid cultural imagery to show that when God forgives, He doesn't just cross out our mistakes—He completely erases the record of our sins, leaving a clean slate.