Genesis 14:22. And Abram said to the king of Sodom, I have lift up mine hand unto the Lord, the most high God, the possessor of heaven and earth.
This was Abram’s method of taking a solemn oath; a mode still practiced in the East, and to some extent in the West. It is said in Isaiah 62:8, “The Lord hath sworn by his right hand.” See also Daniel 12:7; Revelation 10:5-6; the note on Proverbs 11:21 (#461); and also on Ezekiel 21:14 (#677).