Luke 3:2
During the high-priesthood of Annas and Caiaphas, the word of God came to John son of Zechariah in the wilderness — the double high-priesthood identifies the religious establishment at the moment John appears. The word of God came (egeneto rhēma theou) is the standard Old Testament prophetic commission formula (Jeremiah 1:1–2, Ezekiel 1:3). The wilderness is where the word comes and where the ministry begins — the same arena as Israel's formation, Elijah's retreat, and Jesus' testing.