Let Your Yes Be Yes
Again, you have heard that it was said to those of ancient times, 'You shall not swear falsely, but carry out the vows you have made to the Lord.' But I say to you: Do not swear at all, either by heaven, for it is the throne of God, or by the earth, for it is his footstool, or by Jerusalem, for it is the city of the great King. And do not swear by your head, for you cannot make one hair white or black. Let your word be 'Yes, Yes' or 'No, No'; anything more than this comes from the evil one.
Matthew 5:33-37
Elaborate oath systems in Jesus' day graded which vows really bound you. Jesus abolished the whole apparatus with one standard: plain speech.
A person who needs oaths to be believed has already confessed something about their ordinary words. Jesus calls for speech so consistently true that swearing becomes redundant. Integrity is when your word alone is the guarantee.
Close the gap between your commitments and your follow-through this week. Say fewer yeses and keep all of them. Reliability is a spiritual discipline wearing work clothes.