NET

13 The sons of Amram: Aaron and Moses. Aaron and his descendants were chosen on a permanent basis to consecrate the most holy items, to offer sacrifices before the Lord, to serve him, and to praise his name.

Darby

13 The sons of Amram: Aaron and Moses. And Aaron was separated, that he should be hallowed as most holy, he and his sons for ever, to offer^D2454 before Jehovah, to do service to him, and to bless in his name for ever.

Darby Bible Notes

offer - Lit. 'to burn incense;' but it includes also all that was burned as a sweet savour, as the burnt-offering, and the fat. see Lev. 1.9.

KJV

13 The sons of Amram; Aaron and Moses: and Aaron was separated, that he should sanctify the most holy things, he and his sons for ever, to burn incense before the LORD, to minister unto him, and to bless in his name for ever.