The book of Psalms is a broad treasure that teaches us the greatest purpose for which we serve God, and that is that we have been created for His glory, for the praise of His name, and that is why we need to give praises, new songs to our God. The Psalms also teach us that all the glory and honor belong to Jesus and that He would come for us.
There are people who are not clear about who Jesus is, and they think that Christ is a simple servant of God, but in truth that is not so, because Christ is the same God, and is worthy of all the glory, praise and honor.
Psalm 24 is a great example of how deserving Christ is of all honor and glory:
7 Lift up your heads, O ye gates; and be ye lift up, ye everlasting doors; and the King of glory shall come in.
8 Who is this King of glory? The Lord strong and mighty, the Lord mighty in battle.
9 Lift up your heads, O ye gates; even lift them up, ye everlasting doors; and the King of glory shall come in.
10 Who is this King of glory? The Lord of hosts, he is the King of glory. Selah.
Psalm 24:7-10