'Sworn' in the Bible

He that hath clean hands, and a pure heart; Who hath not lifted up his soul unto falsehood, And hath not sworn deceitfully.

I have made a covenant with my chosen, I have sworn unto David my servant:

Once have I sworn by my holiness: I will not lie unto David:

Jehovah hath sworn, and will not repent: Thou art a priest for ever After the order of Melchizedek.

I have sworn, and have confirmed it, That I will observe thy righteous ordinances.

Jehovah hath sworn unto David in truth; He will not turn from it: Of the fruit of thy body will I set upon thy throne.