For I lift up my hand. — This is the form in taking an oath. (Comp. Revelation 10:5.) The two verses may be connected thus: “For I lift up my hand to heaven, and say, As I live for ever, if I whet my lightning sword, and my hand take hold on judgment, I will render vengeance to mine enemies, and repay them that hate me.”
Related Commentaries of Deuteronomy 32:40
Deuteronomy 32:40-41
40 For I lift up my hand to heaven, and say, I live for ever.
41 If I whet my glittering sword, and mine hand take hold on judgment; I will render vengeance to mine enemies, and will reward them that hate me.