Moses and Aaron among his priests. Moses, though not called a priest in the Pentateuch, performed many priestly acts, such as sprinkling the blood of the covenant at Mount Sinai (Exodus 24:6-8), setting in order the tabernacle (Exodus 40:18-33), consecrating Aaron and his sons (Le Psalms 8:6 -30), interceding for the people (Exodus 32:30-32; Numbers 14:13-19), etc.
He is therefore, not improperly, here included among God's priests. And Samuel among them that call upon his Name. Samuel was not a priest, but a simple Levite (1 Chronicles 6:16-28). He was, however, a powerful intercessor with God, a righteous man whose effectual fervent prayer availed much.
He is united with Moses by Jeremiah, as having weight with God through his prayers (Jeremiah 15:1; see also 1 Samuel 12:19-22). They called upon the Lord, and he answered them (see Deuteronomy 11:19; Deuteronomy 10:10; 1 Samuel 12:17, etc.
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