Tradition
St. Augustine
The Enarrations, or Expositions, on the Psalms
Psalm 57 › Section 1
1. We have heard in the Gospel just now, brethren, how loves us our Lord and Saviour Jesus Christ, God with the Father, Man with us, out of our own selves, now at the right hand of the Father; you have heard how much He loves us....
Source: The Enarrations, or Expositions, on the Psalms (New Advent)