Genesis 4:24

If Cain shall be avenged sevenfold, truly Lamech seventy and sevenfold.

Cross-references

In Genesis 4:15, God sets sevenfold vengeance for Cain; Lamech escalates to seventy-sevenfold, echoing divine protection.

In Matthew 18:22, Jesus uses 'seventy-seven' to teach forgiveness, contrasting Lamech's boast of vengeance.