For thy mercy ... - This is taken from Psalm 57:10. The only change is in the expression "above the heavens," instead of "unto the heavens." The sense is essentially the same. The particular idea here, if it differs at all from the expression in Psalm 57:1-11, is, that the mercy of God seems to "descend" from heaven upon man, or "comes down" from on high.

For thy mercy is great above the heavens,..... It is in Psalm 57:10, "thy mercy is great unto the heavens". See Gill on Psalm 57:10.

For thy mercy is great above the heavens: and thy truth reacheth unto the clouds.

clouds: or, skies

108:1-13 We may usefully select passages from different psalms, as here, Ps 57; 60, to help our devotions, and enliven our gratitude. When the heart is firm in faith and love, the tongue, being employed in grateful praises, is our glory. Every gift of the Lord honours and profits the possessor, as it is employed in God's service and to his glory. Believers may pray with assured faith and hope, for all the blessings of salvation; which are secured to them by the faithful promise and covenant of God. Then let them expect from him help in every trouble, and victory in every conflict. Whatever we do, whatever we gain, God must have all the glory. Lord, visit all our souls with this salvation, with this favour which thou bearest to thy chosen people.