Psalms 99:6-7

⁶Moses and Aaron were among his priests; and Samuel was among them that inwardly call his name. They inwardly called the Lord, and he heard them; (Moses and Aaron were among his priests; and Samuel was among those who called on his name. They called on the Lord, and he answered them;)

⁷in a pillar of cloud he spake to them. They kept his witnessings; and the commandment which he gave to them. (he spoke to them from the pillar of cloud. They obeyed his laws, and his commandments, which he gave to them.)