New International Version
Then Saul said, "I have sinned. Come back, David my son. Because you considered my life precious today, I will not try to harm you again. Surely I have acted like a fool and have been terribly wrong."

American Standard Version
Then said Saul, I have sinned: return, my son David; for I will no more do thee harm, because my life was precious in thine eyes this day: behold, I have played the fool, and have erred exceedingly.

Berean Study Bible
Then Saul replied, “I have sinned. Come back, David my son. I will never harm you again, because today you considered my life precious. I have played the fool and have committed a grave error!”

Douay-Rheims Bible
And Saul said: I have sinned, return, my son David, for I will no more do thee harm, because my life hath been precious in thy eyes this day: for it appeareth that I have done foolishly, and have been ignorant in very many things.

English Revised Version
Then said Saul, I have sinned: return, my son David: for I will no more do thee harm, because my life was precious in thine eyes this day: behold, I have played the fool, and have erred exceedingly.

King James Bible
Then said Saul, I have sinned: return, my son David: for I will no more do thee harm, because my soul was precious in thine eyes this day: behold, I have played the fool, and have erred exceedingly.

World English Bible
Then Saul said, "I have sinned. Return, my son David; for I will no more do you harm, because my life was precious in your eyes this day. Behold, I have played the fool, and have erred exceedingly."

Young's Literal Translation
And Saul saith, 'I have sinned; turn back, my son David, for I do evil to thee no more, because that my soul hath been precious in thine eyes this day; lo, I have acted foolishly, and do err very greatly.'

1 Samuel 26:21 Additional Translations ...