New Living Translation
For I recognize my rebellion; it haunts me day and night.

American Standard Version
For I know my transgressions; And my sin is ever before me.

Berean Study Bible
For I know my transgressions, and my sin is always before me.

Douay-Rheims Bible
For I know my iniquity, and my sin is always before me.

English Revised Version
For I acknowledge my transgressions: and my sin is ever before me.

King James Bible
For I acknowledge my transgressions: and my sin is ever before me.

World English Bible
For I know my transgressions. My sin is constantly before me.

Young's Literal Translation
For my transgressions I do know, And my sin is before me continually.

Psalm 51:3 Additional Translations ...