40:1 I waited patiently for the LORD; and he inclined unto me, and heard my cry.
40:3 And he hath put a new song in my mouth, even praise unto our God: many shall see it, and fear, and shall trust in the LORD.
The 40th Psalm speaks of Messiah, Jehovah's Servant, obedient unto death. The Psalm begins with the joy of Christ in resurrection ( Psalms 40:1 Psalms 40:2 ). He has been in the horrible pit of the grave, but has been brought up. Verses 3-5 are His resurrection testimony, His "new song." Verses 6 and 7 are retrospective. When sacrifice and offering had become abominable because of the wickedness of the people Isaiah 1:10-15 then the obedient Servant came to make the pure offering ; Psalms 40:7-17 ; Hebrews 10:5-17 . See Psalm 41., next in order of the Messianic Psalms.
40:4 Blessed is that man that maketh the LORD his trust, and respecteth not the proud, nor such as turn aside to lies.
(See Scofield "Psalms 19:9") .
(See Scofield "Psalms 2:12") .