Ushering In The Presence of God?

QUESTION RECEIVED:
Is `ushering` in the presence of God biblical?

QUESTION ANSWERED:

My search on computer had several big worship events where people were in deep prayer asking the Lord to join them.
Several sermons on this subject.

On more traditional worship services there is a "Call to worship."
But this is often to call worshipers to worship.
By praying, singing and reading Scripture people call on the Lord to be at and at the center of worship. here is an example in Scripture.

Psalm 100 (NKJV)
1 Make a joyful shout to the Lord, all you lands!
2 Serve the Lord with gladness;
Come before His presence with singing.
3 Know that the Lord, He is God;
It is He who has made us, and not we ourselves;
We are His people and the sheep of His pasture.

The Lord is everywhere.
So why do we need to usher him in?

Psalm 139

139
1 O Lord, You have searched me and known me.
2 You know my sitting down and my rising up;
You understand my thought afar off.
3 You comprehend my path and my lying down,
And are acquainted with all my ways.
4 For there is not a word on my tongue,
But behold, O Lord, You know it altogether.
5 You have hedged me behind and before,
And laid Your hand upon me.
6 Such knowledge is too wonderful for me;
It is high, I cannot attain it.

7 Where can I go from Your Spirit?
Or where can I flee from Your presence?
8 If I ascend into heaven, You are there;
If I make my bed in hell, behold, You are there.
9 If I take the wings of the morning,
And dwell in the uttermost parts of the sea,
10 Even there Your hand shall lead me,
And Your right hand shall hold me.
11 If I say, “Surely the darkness shall fall on me,”
Even the night shall be light about me;
12 Indeed, the darkness shall not hide from You,
But the night shines as the day;
The darkness and the light are both alike to You.

4 Enter into His gates with thanksgiving,
And into His courts with praise.
Be thankful to Him, and bless His name.
5 For the Lord is good;
His mercy is everlasting,
And His truth endures to all generations.

I am not trying to split hairs.
God is everywhere.
We worshipers are trying to let God know what we are about.
He, the Lord, knows what He is about.
His book reveals much of what He is about.
We marvel and give Him glory in worship.
The Lord will answer us.
Sometimes we ask Him things individually sometimes in a group.
He hears us and answers us as he wants.

Psalm 118:4-6

4 Let those who fear the Lord now say,
“His mercy endures forever.”
5 I called on the Lord in distress;
The Lord answered me and set me in a broad place.
6 The Lord is on my side;
I will not fear.
What can man do to me?