Bible Verses About pledging

And they lay themselves down upon clothes laid to pledge by every altar, and they drink the wine of the condemned in the house of their god.

Again, ye have heard that it hath been said by them of old time, Thou shalt not forswear thyself, but shalt perform unto the Lord thine oaths:

But above all things, my brethren, swear not, neither by heaven, neither by the earth, neither by any other oath: but let your yea be yea; and your nay, nay; lest ye fall into condemnation.