2 Corinthians 4:2
We reject all shameful deeds and underhanded methods. We don’t try to trick anyone or distort the word of God. We tell the truth before God, and all who are honest know this.
I love this.
Paul points out a couple things about the kind of evangelism true Christians engage in.
First, it does not compromise morality for the sake of growing numbers.
God hates sin and all sinful behavior is rejected by His followers.
Second, it does not compromise integrity for the sake of growing numbers.
God has spoken and it is not our job to add to or take away from His words in order to win people to thinking favorably about Him.
So we don't trick sinners by pretending sin isn't a big deal and we don't deceive them telling them only part of the story or leaving parts of the story out or adding parts to the story that make God seem more likable and Christ more tolerable to the unsaved as though it were our job to protect Him from their judgment.