Donald Trump says he is a Christian, therefore we should not judge him.
Statements like that reveal a shallow theology. In fact, because Donald Trump proclaims himself a Christian, we absolutely are to judge him. The Bible makes that explicit in 1 Corinthians 5.
I wrote to you in my letter not to associate with sexually immoral people— not at all meaning the sexually immoral of this world, or the greedy and swindlers, or idolaters, since then you would need to go out of the world. But now I am writing to you not to associate with anyone who bears the name of brother if he is guilty of sexual immorality or greed, or is an idolater, reviler, drunkard, or swindler—not even to eat with such a one. For what have I to do with judging outsiders? Is it not those inside the church whom you are to judge? God judges those outside. “Purge the evil person from among you.”
Donald Trump claims to be a Christian. He also claims the thing he has in common with his daughter is that they both have sex. He cheated on his first wife with his second and is now on his third wife. He, on several occasions, has said he has no need to repent and has never asked God for forgiveness. Contrary to Cain, who murdered his brother, we in the church are our brothers’ keepers. We are to hold each other to account.
When we are confronted by a man who calls himself a Christian and does not admit he is a sinner, says he has never needed to repent, has tried to take a widow’s home against her consent, has been divorced multiple times and committed adultery, you absolutely are called to judge. The Bible is explicit in this.
If you call yourself a Christian and support Donald Trump, feel free to. But don’t hide behind your faith as an excuse for supporting him as some are. And don’t get in high dudgeons when the rest of us point out Christians are supposed to repent. And do not dare say we should not judge. Not only do you flat out misunderstand Matthew 7, you ignore 1 Corinthians 5.