But above all, my brethren, do not swear, either by heaven or by earth or with any other oath. But let your “Yes” be “Yes,” and your “No,” “No,” lest you fall into judgment.
Now therefore, let the fear of the Lord be upon you; take care and do it, for there is no iniquity with the Lord our God, no partiality, nor taking of bribes.
But you, when you pray, go into your room, and when you have shut your door, pray to your Father who is in the secret place; and your Father who sees in secret will reward you openly.