Bible verses about "vows" | RKJNT

³³ Again, you have heard that it has been said to them of old, You shall not swear falsely, but shall fulfill your oaths to the Lord: ³⁴ But I say to you, Do not swear at all; either by heaven; for it is God's throne: ³⁵ Or by the earth; for it is his footstool: or by Jerusalem; for it is the city of the great King. ³⁶ Nor shall you swear by your head, because you can not make one hair white or black. ³⁷ But let your statements be, Yes for yes; No for no: for whatever is more than these comes from the evil one.

¹ But a certain man named Ananias, with Sapphira his wife, sold a piece of property, ² And, with his wife's knowledge, kept back part of the price, and brought a certain part of it, and laid it at the apostles' feet. ³ But Peter said, Ananias, why has Satan filled your heart to lie to the Holy Spirit, and to keep back part of the price of the land? ⁴ While it was unsold, was it not your own? and even after it was sold, was not the money in your own power? why have you conceived this deed in your heart? you have not lied to men, but to God. ⁵ On hearing these words Ananias fell down and died: and great fear came on all those who heard these things. ⁶ And the young men arose, wrapped him up, and carried him out, and buried him. ⁷ And it was about three hours later, when his wife, not knowing what had happened, came in. ⁸ And Peter said to her, Tell me whether you sold the land for so much? And she said, Yes, for that much. ⁹ Then Peter said to her, How is it that you have agreed to test the Spirit of the Lord? behold, the feet of those who have buried your husband are at the door, and shall carry you out as well. ¹⁰ Then she immediately fell down at his feet, and died: and the young men came in, and found her dead, and, carrying her forth, buried her by her husband. ¹¹ And great fear came upon all the church, and upon as many as heard these things. ¹² But above all things, my brethren, do not swear, either by heaven, or by the earth, or with any other oath: but let your yes be yes; and your no, no; lest you fall into condemnation.