I’m reading Attributes of God by A. W. Pink with my daughter. It is excellent reading to accompany my Bible time.
“God is no gainer even from our worship. He was in no need of that external glory of His grace which arises from His redeemed, for He is glorious enough in Himself without that. What was it that moved Him to predestinate His elect to the praise of the glory of His grace? It was, as Ephesians 1:5 tells us, “according to the pleasure of His will.”
Chapter 1 – Attributes of God