Jesus answered them, “Most certainly I tell you, if you have faith and don’t doubt, you will not only do what was done to the fig tree, but even if you told this mountain, ‘Be taken up and cast into the sea,’ it would be done.”
When they lead you away and deliver you up, don’t be anxious beforehand or premeditate what you will say, but say whatever will be given you in that hour. For it is not you who speak, but the Holy Spirit.
But above all things, my brothers, don’t swear— not by heaven, or by the earth, or by any other oath; but let your “yes” be “yes”, and your “no”, “no”, so that you don’t fall into hypocrisy.
You may say in your heart, “How shall we know the word which Yahweh has not spoken?” When a prophet speaks in Yahweh’s name, if the thing doesn’t follow, nor happen, that is the thing which Yahweh has not spoken. The prophet has spoken it presumptuously. You shall not be afraid of him.
If your brother sins against you, rebuke him. If he repents, forgive him. If he sins against you seven times in the day, and seven times returns, saying, ‘I repent,’ you shall forgive him.
Tongues like fire appeared and were distributed to them, and one sat on each of them. They were all filled with the Holy Spirit and began to speak with other languages, as the Spirit gave them the ability to speak.
When they had prayed, the place was shaken where they were gathered together. They were all filled with the Holy Spirit, and they spoke the word of God with boldness.
But I tell you, don’t swear at all: neither by heaven, for it is the throne of God; nor by the earth, for it is the footstool of his feet; nor by Jerusalem, for it is the city of the great King.