to the fourth # 02_EXO_34_07 # Keeping mercy for thousands, forgiving iniquity and transgression and sin, and that will by no means clear [the guilty]; visiting the iniquity of the fathers upon the children, and upon the children's children, unto the third and to the fourth [generation]. 
unto the fourth # 12_2KI_15_12 # This [was] the word of the LORD which he spake unto Jehu, saying, Thy sons shall sit on the throne of Israel unto the fourth [generation]. And so it came to pass.