Contradiction with Matthew 5:37
Jeremiah 42:5 describes a commitment to obey God’s commands as testified by both parties, while Matthew 5:37 advises that your communication be simple “Yea, yea; Nay, nay,” which implies that more than this comes from evil, suggesting a more straightforward approach to making promises.
Matthew 5:37: But let your communication be, Yea, yea; Nay, nay: for whatsoever is more than these cometh of evil.
Contradiction with James 5:12
Jeremiah 42:5 shows people swearing by God as a solemn vow to obey, whereas James 5:12 advises against swearing oaths and suggests simply letting your "yes" be yes and "no" be no to avoid condemnation.
James 5:12: 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.
Contradiction with Ecclesiastes 5:2
Jeremiah 42:5 involves making a solemn vow to obey God, while Ecclesiastes 5:2 cautions against being rash with words or making hasty promises before God, advocating for restraint in making vows.
Ecclesiastes 5:2: Be not rash with thy mouth, and let not thine heart be hasty to utter [any] thing before God: for God [is] in heaven, and thou upon earth: therefore let thy words be few. [thing: or, word]
Contradiction with Matthew 6:7
Jeremiah 42:5 involves earnest interaction invoking God’s witness, whereas Matthew 6:7 warns against vain repetitions in prayers, indicating that many words are not necessary to be heard by God.
Matthew 6:7: But when ye pray, use not vain repetitions, as the heathen [do]: for they think that they shall be heard for their much speaking.
Contradiction with Proverbs 20:25
Jeremiah 42:5 illustrates the making of a vow to follow God’s word, yet Proverbs 20:25 warns that making vows rashly can lead to being ensnared, which suggests caution before making such commitments.
Proverbs 20:25: [It is] a snare to the man [who] devoureth [that which is] holy, and after vows to make enquiry.