Bible Notes Online - 1-Kings 19 - ESV
Commentary

v1-2: Ahab reported to Jezebel Elijah's dramatic success, but Jezebel's prophets had been killed (see18.19). Ahab was apparently impressed, but Jezebel was unrepentant. She vowed by her gods to kill Elijah. As with Pharaoh, the demonstration of God's power served only to harden hearts; this was true also of the Pharisees during Christ's ministry. Even so, God had shown His power, and had vindicated His chosen servant. See also Rev 9.20-21, where "the rest of mankind" did not repent even though they witnessed mighty demonstrations of power.

v3-4: Such was the power and influence of Jezebel that Elijah was afraid and ran for his life. (See Rev 2  notes on Thyatira) Although Elijah was a man of great faith and had just seen the victory at Mount Carmel, the power of Jezebel was too great for him.

Elijah's response was in fear and depression. Although he was a man of great spiritual endeavour, he struggled in difficult times. No wonder James says, "Elijah was a man just like us." (Jam 5.17)

v5-7: Although Elijah had fled in fear, God remained faithful, and provided for him. It is remarkable that the solution to Elijah's 'depression,' was food and water and sleep. By verse 8, he was sufficiently strengthened to continue his journey.

v8-10: Elijah journeyed to Horeb, in Sinai, many miles away. In spite of the victory at Mount Carmel, Elijah had become very low and discouraged. He thought he was the only one left who loved God. This of course was not true (v18), but his feelings were nevertheless real.

v11-13: The encouragement of God's presence. This time, God came not in the mighty power, but in the quiet voice, "a gentle whisper" (a still small voice).

v14: Elijah repeated the words of v10.

v15-17: A new task for Elijah, to anoint others to serve God, including his own successor. He would have an influence over Israel and Aram.

Elijah was not indispensable, but God's work would continue.

v18: The faithful remnant. At each stage throughout O.T. history, there were those who remained faithful to God. At some times this seems to have been very few, in the midst of widespread idolatry.

v19: Elisha was busy in his appointed task. He had twelve pairs of oxen ploughing.

v20: Elisha had first to face the pull of his family. Elijah's response was clear, 'Go back', or 'follow with me.'

v21: Elisha went back, but only to slaughter his yoke of oxen. This signified his rejection of his old life, and his commitment to follow with Elijah.