Robert Rollock on Grace in our Calling

The grace of God is the undeserved favour of God, or it is that whereby God favoureth his creature without any desert of his. The Apostle doth intimate this much, Ephes. i.9, in that he putteth no difference between these words, grace and a good pleasure; for whereas he saith in that verse, that God hath elected us according to his free grace, it seems to be spoken in the same sense and meaning with that with which he said before in that same chapter, ver. 7, In him we have redemption according to the riches of his grace."

—Robert Rollock, A Treatise of God's Effectual Calling. (1603).