'Sworn' in the Bible

He who has clean hands and a pure heart,Who has not lifted up his soul to what is false,Nor has sworn [oaths] deceitfully.

[God has said] “I have made a covenant with My chosen one;I have sworn to David My servant,

“Once [for all] I have sworn by My holiness, [My vow which cannot be violated];I will not lie to David.

The covenant which He made with Abraham,And His sworn oath to Isaac,

The Lord has sworn [an oath] and will not change His mind:“You are a priest foreverAccording to the order of Melchizedek.”

I have sworn [an oath] and have confirmed it,That I will keep Your righteous ordinances.