Bible Verses About Oaths: Binding to performance of sacred duties

When a man voweth a vow unto Jehovah, or sweareth an oath to bind his soul with a bond, he shall not break his word; he shall do according to all that proceedeth out of his mouth.

And they sware unto Jehovah with a loud voice, and with shouting, and with trumpets, and with cornets.

And all Judah rejoiced at the oath; for they had sworn with all their heart, and sought him with their whole desire; and he was found of them: and Jehovah gave them rest round about.

they clave to their brethren, their nobles, and entered into a curse, and into an oath, to walk in God’s law, which was given by Moses the servant of God, and to observe and do all the commandments of Jehovah our Lord, and his ordinances and his statutes;

How he sware unto Jehovah, And vowed unto the Mighty One of Jacob: