Through which son did the promise to Abraham say the covenants would continue?
The promise to Abraham declared that the covenants would continue not through Ishmael but through the promised son, Isaac. Scripture presents Isaac as the child of promise, the son through whom the covenant line would be carried forward, rather than through Abraham's son Ishmael.
Les explains that the promise to Abraham was that the covenants would continue, not through Ishmael, but through the promised son, Isaac. He notes this continues the teaching from the previous program and reminds viewers that this is an informal Bible study. The context contrasts Ishmael with Isaac, identifying Isaac as the promised son through whom the covenant promise would continue.