Observe, then, thy rule to make judgment of the sufficiency of the blessed merits of thy Saviour. If he had not been able to have reconciled the biggest sinners to his Father by his blood, he would not have sent to them, have sent to them in the first place, the doctrine of remission of sins; for the remission of sins is through faith in his blood. We are justified freely by the grace of God, through the redemption that is in the blood of Christ. Upon the square, as I may call it, of the worthiness of the blood of Christ, grace acts, and offers forgiveness of sin to men (Eph 1:7; 2:13,14; Col 1:20-22). Hence, therefore, we must gather, that the blood of Christ is of infinite value, for that he offereth mercy to the biggest of sinners. Nay, further, since he offereth mercy, in the first place, to the biggest sinners, considering also, that this first act of his is that which the world will take notice of, and expect it should be continued unto the end. Also, it is a disparagement to a man that seeks his own glory in what he undertakes, to do that for a spurt, which he cannot continue and hold out in. This is our Lord's own argument, He began to build, saith he, but was not able to finish (Luke 14:30).
Shouldst thou hear a man say, I am resolved to be kind to the poor and should begin with giving handfuls of guineas, you would conclude, that either he is wonderfully rich, or must straighten his hand, or will soon be at the bottom of his riches. Why, this is the case: Christ, at his resurrection, gave it out that he would be good to the world; and first sends to the biggest sinners, with an intent to have mercy on them. Now, the biggest sinners cannot be saved but by an abundance of grace; it is not a little that will save great sinners (Rom 5:17). And I say again, since the Lord Jesus mounts thus high at the first, and sends to the Jerusalem sinners, that they may come first to partake of his mercy, it follows, that either he has unsearchable riches of grace and worth in himself, or else he must straighten his hand, or his grace and merits will be spent before the world is at an end. But let it be believed, as surely as spoken, he is still as full as ever. He is not a jot the poorer for all the forgiveness that the has given away to great sinners. Also, he is still as free as at first; for he never yet called back this word, Begin at the Jerusalem sinners. And, as I said, since his grace is extended according to the worth of his merits. I conclude, that there is the same virtue in his merits to save now, as there was at the very beginning, Oh! the riches of the grace of Christ! Oh! the riches of the blood of Christ!
Third, Would Jesus Christ have mercy offered in the first place to the biggest sinners? Then here is encouragement for you that think, for wicked hearts and lives, you have not your fellows in the world, yet to come to him.