Genesis 14:19-20 gives the account of the blessing that Melchizedek, the priest of the most high God, gives when he meets with Abram. If you notice closely, Melchizedek, blesses Abram, whom he refers to as the “Abram of the most high God” and then he blesses “the most high God” himself.

Abram was blessed because he belonged to (was of) the most high God.
Additionally, the most high God was blessed as well.

Point to ponder:
When we belong to God i.e., we are God’s property, we are blessed, just as Abram was. By faith, when we believe, in Jesus Christ, we receive the Spirit of adoption, by whom, we can call God, “Abba, Father” (Galatians 4:6; Romans 8:15), meaning that we belong to God. We are God’s property for we have been purchased with a price – the price of the blood of Jesus Christ (Galatians 3:13-14; 1 Timothy 2:6; John 19:30), God’s only begotten Son. Are you and I blessed? In other words, do you and I belong to God?

When we belong to God and are of the most high God, those who bless us, will also bless the most high God. Is your life and mine, a means to bring blessing to God. Think about it!

Genesis 14:19-20 (KJV)
19 And he blessed him, and said, Blessed be Abram of the most high God, possessor of heaven and earth:
20 And blessed be the most high God, which hath delivered thine enemies into thy hand. And he gave him tithes of all.