Epistle to the Hebrews

But, beloved, we are persuaded of better things for you, and things that accompany salvation, even though we speak like this.

For God is not unrighteous, so as to forget your work and the labor of love which you showed toward his name, in that you served the saints, and still do serve them.

We desire that each one of you may show the same diligence to the fullness of hope even to the end,

that you won't be sluggish, but imitators of those who through faith and patience inherited the promises.

For when God made a promise to Abraham, since he could swear by none greater, he swore by himself,

saying, "Most surely I will bless you, and I will surely multiply you."

Thus, having patiently endured, he obtained the promise.

For men indeed swear by a greater one, and in every dispute of theirs the oath is final for confirmation.