I've studying typological-interpretation several years ago. so welcomed this kinds of series. I've found lots of type just like "son", "adopted son" here and there. and Christ-centric, church-centric interpretation. Yes, Christotelic interpretation. Faithful adopted son like Samuel,David and their anti-pattern Eli' sons, Saul, Absalom. and Exodus motiff is very insightful. The barren Hannah and David' long life Journey. finally, this is so helpful to preach.