4 In thee our fathers trusted; they trusted, and thou didst deliver them.
At first glance and separated from the rest of the Psalm this looks like a praise, however it is actually a complaint. As Messiah hung on the cross, He complains that God the Father is not coming to rescue Him. In His agony and suffering He reminds God that He saved others.
He was delivered to His enemies, He felt forsaken, He felt that no one was coming to deliver Him, because that was the way it was.
Yet it was the will of the LORD to bruise him; he has put him to grief; when he makes himself an offering for sin, he shall see his offspring, he shall prolong his days; the will of the LORD shall prosper in his hand; Is. 53:10
Only in being forsaken, only in being rejected, could victory be given to all. without obedience He could not become a source for all who OBEY Him.
8 Although he was a Son, he learned obedience through what he suffered; 9 and being made perfect he became the source of eternal salvation to all who obey him, 9 and being made perfect he became the source of eternal salvation to all who obey him, Heb. 5:8-9
There is always that little catch about obedience that the dispensational church has lost, with their false teaching that, “the law has passed away”.
As the Son of God was obedient unto death so we must be obedient to His teachings.
If you keep my commandments, you will abide in my love, just as I have kept my Father’s commandments and abide in his love. John 15:10