This psalm is largely, though not completely messianic. In it we see many references which are applied to Christ in the New Testament.
We see his suffering on the cross in which he starts sinking into death. He cries out to God, but there is no answer. His eyes are failing and his throat is completely parched. (1-3)
He’s completely surrounded by his enemies who hate him for no reason (4) and his own brothers mock and reject him (8).
In Christ’s cleansing of the temple, we see his zeal for his Father’s house (9).
He was scorned, disgraced, and shamed by the people (19), and when he asked for drink, he was given vinegar mixed with gall (21).
And Peter of course uses verse 25 to refer to Judas in Acts 1.
So in this psalm, we see the cry of Christ as he suffered on the cross. But we also see our salvation. Because through the cross, all of our sins are paid for. And because of the cry of Christ, we can also sing his song of praise.
I will praise God’s name in song and glorify him with thanksgiving. This will please the Lord more than an ox, more than a bull with its horns and hooves. The poor will see and be glad—you who seek God, may your hearts live! (30-32)
He then closes by singing,
Let heaven and earth praise him, the seas and all that move in them, for God will save Zion and rebuild the cities of Judah. Then people will settle there and possess it; the children of his servants will inherit it, and those who love his name will dwell there. (34-36)
A new Jerusalem is coming. Not only for the Jews but for all who believe in Jesus and his work on the cross and love his name. And there our salvation will find its ultimate fulfillment.
Lord, I thank you for my salvation that you bought with your blood an at great cost. Lord, though you were innocent, yet you died for me. Lord let me never take that for granted. May my life to you be praise each day. And everyday let me proclaim through my life and my words what you have done. In Jesus name, amen.