12:13 I have sinned against the Lord. When charged by God’s prophet, David responds with an immediate and unqualified confession; contrast Saul’s confessions in 1 Sam. 15:24, 25, 30 (notes). Ps. 51, according to its superscription, is a fuller picture of David’s repentance.

you shall not die. See notes 11:5; 12:5.