Numbers 14:17

I beseech thee, let the power of my Lord be great, according as thou hast spoken, saying, The Lord is longsuffering, and of great mercy, forgiving iniquity and transgression, and by no means clearing the guilty; visiting the iniquity of the fathers upon the children unto the third and fourth generation.

O remember not against us former iniquities: let thy tender mercies speedily prevent us. Help us, O God of our salvation, for the glory of thy name: and deliver us, and purge away our sins, for thy name's sake.