Charles Spurgeon Commentary Ephesians 1:19

"and what the exceeding greatness of his power to us-ward who believe, according to that working of the strength of his might" — Ephesians 1:19 (ASV)

And what is the exceeding greatness of his power to usward who believe,

It takes a great deal of grace to make a believer, and to keep a believer; nothing but the almighty power of God can do it.