Deuteronomy 32:44

41 If I have sharpened the brightness of My sword, And My hand doth lay hold on judgment, I turn back vengeance to Mine adversaries, And to those hating Me -- I repay!

42 I make drunk Mine arrows with blood, And My sword devoureth flesh, From the blood of the pierced and captive, From the head of the freemen of the enemy.

43 Sing ye nations -- [with] his people, For the blood of His servants He avengeth, And vengeance He turneth back on His adversaries, And hath pardoned His land -- His people.`

44 And Moses cometh and speaketh all the words of this song in the ears of the people, he and Hoshea son of Nun;

45 and Moses finisheth to speak all these words unto all Israel,

46 and saith unto them, `Set your heart to all the words which I am testifying against you to-day, that ye command your sons to observe to do all the words of this law,

47 for it [is] not a vain thing for you, for it [is] your life, and by this thing ye prolong days on the ground whither ye are passing over the Jordan to possess it.`