Men of low degree are only vanity
and men of rank are a lie;
In the balances they go up;
They are together lighter than breath.
Rank makes no difference in the Kingdom of God. All together our little prestiges add up to nothing. The low born men are an emptiness. The men that have some great position, it is all a lie. It has no lasting value.
The only thing that has substance is God Himself.
This Psalm is a plea to give your life to God. He is worth it! He is the only one who is worthy.