Psalm 89:28 in the World English Bible
I will keep my loving kindness for him forever more. My covenant will stand firm with him.
Context
27 Also I will make him my firstborn, higher than the kings of the earth.
28 My mercy will I keep for him for evermore, and my covenant shall stand fast with him.
29 His seed also will I make to endure for ever, and his throne as the days of heaven.