The saved are singled out not by their own merits, but by the grace of the Mediator.
If God were willing to sell His grace, we would accept it more quickly and gladly than when He offers it for nothing.
All these things He must be in me, abiding, living, speaking in me; that I may be the righteousness of God in Him (2 Cor. v. 21); not in love, nor in gifts and graces which follow; but in Him.
God does not give grace freely in the sense that He will demand no satisfaction, but He gave Christ to be the satisfaction for us.
A man who has no part in the grace of God, cannot keep the commandments of God, or prepare himself, either wholly or in part, to receive grace; but he rests of necessity under the power of sin.