Most "holy" prayer of the Jews is Kol Nidre

 Kol Nidre: All vows and prohibitions and oaths …

"that we may vow or swear or prohibit upon ourselves
from this Yom Kippur until the Yom Kippur that is coming upon us for goodness—
regarding all of them, we repudiate them.

All of them are undone, abandoned, cancelled, null and void, not in force, and not in effect.
Our vows are no longer vows, and our prohibitions are no longer prohibitions, and our oaths are no longer oaths."

James Chapter 5 - 10 Take, my brethren, the prophets, who have spoken in the name of the Lord, for an example of suffering affliction, and of patience.

11 Behold, we count them happy which endure. Ye have heard of the patience of Job, and have seen the end of the Lord; that the Lord is very pitiful, and of tender mercy.

12 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.

Matthew Chapter 5 - 32 But I say unto you, That whosoever shall put away his wife, saving for the cause of fornication, causeth her to commit adultery: and whosoever shall marry her that is divorced committeth adultery.

33 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:

34 But I say unto you, Swear not at all; neither by heaven; for it is God's throne:

35 Nor by the earth; for it is his footstool: neither by Jerusalem; for it is the city of the great King.

Matthew Chapter 5

36 Neither shalt thou swear by thy head, because thou canst not make one hair white or black.

37 But let your communication be, Yea, yea; Nay, nay: for whatsoever is more than these cometh of evil.

James Chapter 5  2 Your riches are corrupted, and your garments are motheaten.

3 Your gold and silver is cankered; and the rust of them shall be a witness against you, and shall eat your flesh as it were fire. Ye have heaped treasure together for the last days.

4 Behold, the hire of the labourers who have reaped down your fields, which is of you kept back by fraud, 

crieth: and the cries of them which have reaped are entered into the ears of the Lord of sabaoth.

5 Ye have lived in pleasure on the earth, and been wanton; ye have nourished your hearts, as in a day of slaughter.