Jewish Publication Society of America Version (JPS1917) - Psalms 50:18 >

When thou sawest a thief, thou hadst company with him, and with adulterers was thy portion.

King James Version (KJV) - Psalms 50:18 >

When thou sawest a thief, then thou consentedst with him, and hast been partaker with adulterers.

Berean Study Bible (BSB) - Psalms 50:18 >

When you see a thief, you befriend him, and throw in your lot with adulterers.