This is the encapsulation of Grace, clearly pointing out our part which is faith in Jesus and confession of Him as risen Lord and Saviour.

The implication of our part being to believe on Jesus Christ and confess Him as risen Lord, is that He has done everything else!
It is why we call it amazing Grace!
It is why the gospel is nearly too good to be true!

Who raised Jesus from the dead?
He raised Himself Joh 10:17,18 by His HolySpirit Rom 8:11.