New Living Translation
Lord, where is your unfailing love? You promised it to David with a faithful pledge.

American Standard Version
Lord, where are thy former lovingkindnesses, Which thou swarest unto David in thy faithfulness?

Berean Study Bible
Where, O Lord, is Your loving devotion of old, which You faithfully swore to David?

Douay-Rheims Bible
Lord, where are thy ancient mercies, according to what thou didst swear to David in thy truth?

English Revised Version
Lord, where are thy former mercies, which thou swarest unto David in thy faithfulness?

King James Bible
Lord, where are thy former lovingkindnesses, which thou swarest unto David in thy truth?

World English Bible
Lord, where are your former loving kindnesses, which you swore to David in your faithfulness?

Young's Literal Translation
Where are Thy former kindnesses, O Lord. Thou hast sworn to David in Thy faithfulness,

Psalm 89:49 Additional Translations ...