New Living Translation
A song for pilgrims ascending to Jerusalem. A psalm of David. What if the LORD had not been on our side? Let all Israel repeat:

King James Bible
A Song of degrees of David. If it had not been the LORD who was on our side, now may Israel say;

Darby Bible Translation
{A Song of degrees. Of David.} If it had not been Jehovah who was for us oh let Israel say --

World English Bible
If it had not been Yahweh who was on our side, let Israel now say,

Young's Literal Translation
A Song of the Ascents, by David. Save for Jehovah -- who hath been for us, (Pray, let Israel say),

Psalm 124:1 Parallel