Commentaries
17:11-21 The parable is explained, and the particulars of the history of the Jewish nation at that time may be traced. Zedekiah had been ungrateful to his benefactor, which is a sin against God. In every solemn oath, God is appealed to as a witness of the sincerity of him that swears. Truth is a debt owing to all men. If the professors of the true religion deal treacherously with those of a false religion, their profession makes their sin the worse; and God will the more surely and severely punish it. The Lord will not hold those guiltless who take his name in vain; and no man shall escape the righteous judgment of God who dies under unrepented guilt.
17. Pharaoh—Pharaoh-hophra (Jer 37:7; 44:30), the successor of Necho (2Ki 23:29).
Neither … make for him—literally, "effect (anything) with him," that is, be of any avail to Zedekiah. Pharaoh did not act in concert with him, for he was himself compelled to retire to Egypt.
by casting up mounts, &c.—So far from Pharaoh doing so for Jerusalem, this was what Nebuchadnezzar did against it (Jer 52:4). Calvin Maurer, &c., refer it to Nebuchadnezzar, "when Nebuchadnezzar shall cast up mounts."