In Psalm 24 verse 7 David said, "Lift up your heads, O ye gates; and be ye lift up, ye everlasting doors; and the King of glory shall come in."
This is a simple verse loaded with meaning for those dealing with depression. Commentator Robert Hawker notes the word gate or gates is figuratively used to denote a place, person or people. So in this passage David is encouraging the children of God to lift up their heads-not to be cast down with sadness and depression and the King of Glory will come in.
You must lift up your head, you must shake off sadness, depression, and regret for the King of Glory to come in and change your situation.
In Matthew 16:18, Jesus said the gates of hell will not prevail against the church as a member of Christ's body (Colossians 1:18), you can rejoice because the "gates of hell" the principalities and powers, Satan and his demons will not prevail against you. So lift up your head! Put a smile on your face. Rejoice in the Lord your God.
In the following verse (Psalm 24:8) David says, Who is this King of Glory? The Lord strong and mighty! The Lord mighty in battle! Yes, you have the Lord of Hosts on your side, the one who is mighty in battle waiting to fight for you but you have to open the door (v7) by lifting up your head in expectant hope instead of being bowed down in bitter defeat.
If you lift up your head that is no more walking around with head your hung down or staying in bed for days because of your problems, and the King of Glory will come in.
So, Lift up your heads, O ye gates; even lift them up, ye everlasting doors; and the King of glory shall come in.
Who is this King of glory? The LORD of hosts, he is the King of glory. Selah. Psalm 24:9-10