Charles Spurgeon Commentary Ephesians 1:18

"having the eyes of your heart enlightened, that ye may know what is the hope of his calling, what the riches of the glory of his inheritance in the saints," — Ephesians 1:18 (ASV)

The eyes of your understanding being enlightened;

You have eyes; God's grace has given them to you; but they are capable of additional power and force; and there is the telescope of faith, which you are allowed to use, which will enable you to see much more than you have ever seen until now.

That you may know what is the hope of his calling, and what the riches of the glory of his inheritance in the saints—

First, you are to know what your inheritance is—that is, the hope of his calling—and next, you are to know what Christ's inheritance in you is, which is another thing. It is a most blessed subject for meditation that you are Christ's, altogether Christ's, and that all you are to be will be Christ's, and that in you, poor creatures though you are, he will yet have a rich inheritance. Paul would have you know what the riches of the glory of his inheritance in the saints are.