Psalms 51:2

“Wash me thoroughly from mine iniquity, etc.] Which supposes defilement by sin, and that very great, and such as none can remove but the Lord himself; who, when he takes it in hand, does it effectually and thoroughly; (see <263625>Ezekiel 36:25). David’s sin had long lain upon him, the faith of it had as it were eaten into him, and spread itself over him, and therefore he needed much washing: “wash me much”, all over, and thoroughly: and cleanse me from my sin: which only the blood of Christ can do, (<620107>1 John 1:7). The psalmist makes use of three words to express his sin by, in this verse (<195101>Psalm 51:1); [çp, which signifies “rebellion”, as all sin has in it rebellion against God…”

“Wash me--Purity as well as pardon is desired by true penitents.”

“Wash me throughly from mine iniquity - literally, “Multiply to wash me.” The word rendered “throughly” is a verb, either in the infinitive or imperative mood, and suggests the idea of “multiplying” or “increasing.” The reference is to that which might need constant or repeated washings in order to remove a stain adverbially to denote intensity, or thoroughness. On the word wash as applicable to sin, see the notes at Isaiah 1:16. And cleanse me from my sin - Remove it entirely. Make me wholly pure. See the notes at Isaiah 1:16. In what manner he hoped that this would be done is shown in the following portions of the psalm. It was - (a) by forgiveness of the past, Psalms 51:9; and (b) by…”

“51:2 Wash me . . . Purify me: The psalmist prays for cleansing and release from the guilt of his sin (51:7; see 26:6; Isa 1:16, 18; 4:4).”

“Wash: Psa 51:7; Eze 36:25; Zac 13:1; Co1 6:11; Heb 9:13, Heb 9:14, Heb 10:21, Heb 10:22; Jo1 1:7-9; Rev 1:5, Rev 7:14 cleanse: Psa 51:7, Psa 19:12 Psalms 51:3”