2 I will declare that your love stands firm forever, that you have established your faithfulness in heaven itself.

Read Psalm 89:2 Using Other Translations

For I have said, Mercy shall be built up for ever: thy faithfulness shalt thou establish in the very heavens.
For I said, "Steadfast love will be built up forever; in the heavens you will establish your faithfulness."
Your unfailing love will last forever. Your faithfulness is as enduring as the heavens.