Numbers 14:18

14:18 Yahweh is slow to anger, and abundant in loving kindness, forgiving iniquity and disobedience; and that will by no means clear [the guilty], visiting the iniquity of the fathers on the children, on the third and on the fourth generation.
-World English Bible

Other Translation

14:18 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].
-King James Version