Second, for the sake of our character. More important still is the issue of personal character. There’s a good reason why Jesus’ exposition of the moral law in Matthew 5 focused so much on uprightness of heart as opposed to external behavior. That’s because the real barometer of who we are is reflected in what we do when no one else is looking, how we think in the privacy of our own thoughts, and how we respond to the promptings of our own consciences. Those things are the true measure of your moral and ethical fiber.
As important as it is to keep a good reputation in the community, it is a thousand times more important to safeguard our own personal character. That is why Jesus dealt with the issues of morality and ethics beginning with the innermost thoughts of our hearts. “For out of the heart come evil thoughts, murder, adultery, sexual immorality, theft, false witness, slander” (Matt. 15:19).
It’s probably not overstating the case at all to say that the single most important battlefield in the struggle for integrity is your own mind. That’s where everything will actually be won or lost. And if you lose there, you have already ruined your character. A corrupt character inevitably spoils the reputation, too, because a bad tree can’t bring forth good fruit (Matt. 7:18).
That brings to mind a third reason why it is so vital to guard our moral and ethical integrity: for the sake of our testimony. Your reputation reflects what people say about you. Your testimony is what your character, your behavior and your words say about God.
Consider what is being communicated when a Christian lacks ethical integrity. That person is saying he doesn’t truly believe what Scripture plainly says is true of God: That “to do righteousness and justice is more acceptable to the Lord than sacrifice” (Prov. 21:3). That “the sacrifice of the wicked is an abomination to the Lord, but the prayer of the upright is acceptable to him” (15:8). And that God “delight[s] in truth in the inward being”
In other words, the person who neglects ethical integrity is telling a lie about God with his life and his attitude. If he calls himself a Christian and professes to be a child of God, he is in fact taking God’s name in vain at the most fundamental level. That puts the issue of ethical integrity in perspective, doesn’t it?
That’s what we need to call to mind whenever we are tempted to adapt our ethical principles for convenience’ sake. It isn’t worth the high cost to our reputation, our character or our testimony.