en_tn/deu/32/40.md

I lift up my hand to heaven and say

"I lift up my hand to heaven and swear" or "I have taken an oath." Lifting up the hand is a sign of making an oath.

As I live forever

"As certainly as I live forever" or "I swear by my life which is never-ending." This statement assures the people that what God says in Deuteronomy 32:41-Deuteronomy 32:42 will happen.