Charles Ellicott Commentary 2 Chronicles 6:42

"O Jehovah God, turn not away the face of thine anointed: remember [thy] lovingkindnesses to David thy servant." — 2 Chronicles 6:42 (ASV)

O Lord God. — Not in the psalm. The temple invocation is used as in the priest’s blessing (Numbers 6:24–26).

Do not turn away the face of your anointed — i.e., do not deny his request (1 Kings 2:16). Psalms 132:10:—

For the sake of David Thy servant,
Turn not away the face of Thine Anointed.

The members of the couplet are transposed, and the language of the first is modified by the chronicler, to bring in the phrase, “the mercies of David,” that is, Jehovah’s mercies promised to David (Isaiah 55:3; Psalms 89:49).

Remember (zokrâh) — Only here and five times in Nehemiah.