'm not sure anything really NEEDS to be said about Psalm 22. Any Christian can see plainly that this is a prophetic picture of Christ on the cross. Nevertheless, allow me to worship Him a little...
It was while He was on the cross that He felt alone. It was the cross that brought His abject humiliation. It was from before the cross that He heard the mockery concerning His claims about His relationship with the Father. It was the threat of the cross that drove even His friends away from Him. It was around the cross that the evil spirits gathered to watch the sacrifice of their divine nemesis (Luke 22:53 & Psalm 22:12). It was the jarring erection of the cross which would have pulled His joints out of their sockets. It was after His death on the cross that a Roman spear was used to discover the condition of His broken heart (Psalm 22:14 & John 19:34). It is from the cross of Calvary that we hear the very Creator of the seas crying out, "I'm thirsty!" It was through the cross that Jesus' hands and feet were pierced. It was on the cross that the Son of God hung with His flesh torn away and His bones exposed. It was at the foot of the cross that Jesus' clothes were divided among heathen soldiers.
But wait; don't lose sight of the end of Psalm 22. It was also on the cross that Jesus prayed for His own resurrection (Psalm 22:19-21). It was while He was on the cross that He meditated upon His intention to save His people and to exalt the name of His Father. It was when He was on the cross that I was on His mind (Psalm 22:26-27). It was His work on the cross that ultimately gave Him the absolute right to rescue and to govern the nations (Romans 3:26 & Revelation 5:9). It was the cross that lifted the gospel high for all people to plainly see (John 12:32). In the words of the apostle Paul, "I will glory in the cross" (Galatians 6:14)!
Truly, the Lord has done great things for us... whereof we are glad (Psalm 126:3)! And, of all the great things that He has done for us, nothing compares to what He accomplished on the cross.