NET

15 and he slaughtered it. Moses then took the blood and put it all around on the horns of the altar with his finger and purified the altar, and he poured out the rest of the blood at the base of the altar and so consecrated it to make atonement on it.

Darby

15 and he slaughtered [it], and Moses took the blood, and put [it] on the horns of the altar round about with his finger, and cleansed the altar from sin, and the blood he poured at the bottom of the altar, and hallowed it, making atonement for it.

KJV

15 And he slew [it]; and Moses took the blood, and put [it] upon the horns of the altar round about with his finger, and purified the altar, and poured the blood at the bottom of the altar, and sanctified it, to make reconciliation upon it.