American Standard Version (ASV):
[For the Chief Musician, for Jeduthun. A Psalm of David]. I said, I will take heed to my ways, That I sin not with my tongue: I will keep my mouth with a bridle, While the wicked is before me.
King James Version (KJV):
To the chief Musician, [even] to Jeduthun, A Psalm of David. I said, I will take heed to my ways, that I sin not with my tongue: I will keep my mouth with a bridle, while the wicked is before me.