7 Bible Verses about Oaths, Human

Woe to you, blind guides that you are! you say, 'Swear by the sanctuary, and it means nothing; but swear by the gold of the sanctuary, and the oath is binding.' You are senseless and blind! for which is the greater, the gold or the sanctuary that makes the gold sacred? You say again, 'Swear by the altar, and it means nothing; but swear by the gift upon it, and the oath is binding.'read more.
You are blind! for which is the greater, the gift or the altar that makes the gift sacred? He who swears by the altar swears by it and by all that lies on it; he who swears by the sanctuary swears by it and by Him who inhabits it; he who swears by heaven swears by the throne of God and by Him who sits upon it.

When he went out to the gateway another maidservant noticed him and said to those who were there, "This fellow was with Jesus the Nazarene." Again he denied it; he swore, "I do not know the man." After a little the bystanders came up and said to Peter, "To be sure, you are one of them too. Why, your accent betrays you!"read more.
At this he broke out cursing and swearing, "I do not know the man." At that moment a cock crowed.

But he denied it again. After a little the bystanders once more said to Peter, "To be sure, you are one of them. Why, you are a Galilean!" But he broke out cursing and swearing, "I do not know the man you mean."

However, on Herod's birthday, the daughter of Herodias danced in public to the delight of Herod; whereupon he promised with an oath to give her whatever she wanted.

The daughter of Herodias went in and danced to them, and Herod and his guests were so delighted that the king said to the girl, "Ask anything you like and I will give you it." He swore to her, "I will give you whatever you want, were it the half of my realm."

Above all, my brothers, never swear an oath, either by heaven or by earth or by anything else; let your "yes" be a plain "yes," your "no" a plain "no," lest you incur judgment.

Once again, you have heard how the men of old were told, 'You must not forswear yourself but discharge your vows to the Lord'. But I tell you, you must not swear any oath, neither by heaven, for it is the throne of God, nor by earth, for it is the footstool of his feet, nor by Jerusalem, for it is the city of the great King;read more.
nor shall you swear by your head, for you cannot make a single hair white or black. Let what you say be simply 'yes' or 'no'; whatever exceeds that springs from evil.