Hymn: I Greet You, My Sure Redeemer Are

This is my modernization of the hymn I Greet Thee, My Sure Redeemer Art, as found in the OPC Trinity Hymnal here. It would be very helpful to remove as much as possible all the Thees and Thous from hymns, as I believe we do not live in the 16th - 18th centuries anymore. Also, does anyone know why the choice of a slow tempo for hymns?

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I Greet You, my Sure Redeemer Are

1:

D G Em A D
I greet You, who my sure Redeemer are
G Em A
My only trust and Savior of my heart,
D Bm E A
Who pain did undergo for my poor sake;
D G A D
I pray You’ll from our hearts all cares to take.

2:

You are the King of mercy and of grace,
Reigning omnipotent in every place;
So come, O King, and our whole being sway;
Shine on us with the light of Your pure day.

3:

You are the life, by which alone we live,
And all our substance and our strength receive;
O comfort us in death's approaching hour,
Strong-hearted then to face it by Your pow'r.

4:

You have the true and perfect gentleness,
No harshness You have and no bitterness;
Make us to taste the sweet grace found in Thee
And ever stay in Your sweet unity.

5:

Our hope is in no other save in Thee;
Our faith is built upon Your promise free;
O grant to us such stronger hope and sure
That we can boldly conquer and endure.