Grace is more than mercy and love. It super-adds to them. It denotes, not simply love, but the love of a sovereign, transcendent Superior. One that may do what He will. That may wholly choose whether He will love or no. Now God, who is an infinite Sovereign, who might have chosen whether ever He would love us or no; for Him to love us, this is Grace.
Thomas GoodwinValue God and his love more than all the world, though there were millions of them. He valued you before the world, and therefore is beforehand with you in his love. He not only loved you from everlasting, (whereas your love is but of yesterday,) but in the valuation of it, he loved you before all worlds, and preferred you to all worlds: though you loved the world first, before you loved him.
Thomas GoodwinAnd so Adam, in that his speech to Eve, uttered his faith in the promise made to her of her seed, and so in that respect Adam himself came in under her covenant.
Thomas Goodwin