New Defender's Study Bible Notes
101:2 perfect way. Although this psalm was written by David, its claim of perfect actions and a perfect heart (Psalm 101:2) could not really apply to him, whether written as he assumed Israel’s throne or after his great sin and subsequent repentance. As a divinely inspired writer, it is difficult to think of him speaking of himself in such a manner. Thus it seems this is actually a Messianic psalm, with the perfectly righteous Son of Man speaking through David concerning His future ministry on earth.
101:4 froward. See note on Job 5:13.
101:7 he that telleth lies. But the fearful, and unbelieving,...and all liars” (Revelation 21:8), are to be “cut off...from the city of the LORD” (Psalm 101:8). “For without are...idolaters, and whosoever loveth and maketh a lie” (Revelation 22:15).
Psalm 102 (title) Prayer of the afflicted. The title affixed to this psalm indicates it to be the prayer of the “afflicted one.” Since it is applied to Christ in Hebrews, it is essentially a Messianic psalm, and the “afflicted one” is our suffering Savior, who is also called “the afflicted” in the Messianic Psalm 22 (verse 24).