“By your blood you ransomed people for God from every tribe and language and people and nation” (Revelation 5:9).

The reason God can freely and righteously turn back the hearts of sinners is because that’s what Jesus bought for all the saints, Old Testament and New. That’s what he paid for with his blood.

From John Piper’s sermon, “Lord, Teach Us to Fight: The Double Battle in Gethsemane.”