Abram has Ishmael with Sarai’s handmaiden Hagar. God renews the covenant with Abraham, including the promise of an heir from his body and Sarah’s, and gives the sign of circumcision.
In his opening to this epistle Paul shares four aspects of the power of God to further the spread of the gospel, in spite of opposition from the enemy.
Availing ourselves of the power of heaven through prayer to affect the will of God on Earth, and especially to save those in our sphere of influence who are lost.