Do not take an oath by your head, because you are not able to make one hair white or black.

When Jesus had finished instructing his twelve disciples, he went on from there to teach and preach in their towns.

He gave them another parable: "The kingdom of heaven is like a mustard seed that a man took and sowed in his field.

He told them another parable: "The kingdom of heaven is like yeast that a woman took and mixed with three measures of flour until all the dough had risen."