But now, apart from law . . . (Rom 3:21)
But when he . . . was pleased to reveal his Son to me . . . (Gal 1:16)
But God, being rich in mercy . . . (Eph 2:4)
The wonder of the gospel--God looked down and saw our hard-heartedness, and did not say therefore. He said: But.
We think: I fail God. Therefore.
He says: You're right. But.