Elementary Teachings
Heb 6:1,2 Therefore let us leave the elementary teachings about Christ and go on to maturity, not laying again the foundation of repentance from acts that lead to death, and of faith in God, instruction about baptisms, the laying on of hands, the resurrection of the dead, and eternal judgment.
It's called "Elementary School" for a reason. When we're young we are to learn to the elementary teachings, and only later more advanced teachings.
Elementary Teaching 1
REPENTANCE
In Christian doctrine repentance from sin is an elementary teaching. Repentance from sin involves the intention to change one's behavior, and is indicative of the kind of faith that qualifies one to be saved. Paul describes his ministry saying, "First to those in Damascus, then to those in Jerusalem and in all Judea, and to the Gentiles also, I preached that they should repent and turn to God and prove their repentance by their deeds." Acts 26:20 When Jesus visited Zacchaeus, the tax collector, he repented and said, "Look, Lord! Here and now I give half of my possessions to the poor, and if I have cheated anybody out of anything, I will pay back four times the amount." Jesus said to him, "Today salvation has come to this house" Luke 19:8,9 Notice that Zacchaeus simply expressed his INTENTION to change and that was sufficient for salvation.
In contrast there are those who view the grace of God as a license to sin, as Jude said, "certain men whose condemnation was written about long ago have secretly slipped in among you. They are godless men, who change the grace of our God into a license for immorality" Jude 1:4a And Peter prophesied saying, "there will be false teachers among you. They will secretly introduce destructive heresies" 2Peter 2:1b and "Many will follow their shameful ways and will bring the way of truth into disrepute." 2Peter 2:2 and "they mouth empty, boastful words and, by appealing to the lustful desires of sinful human nature, they entice people who are just escaping from those who live in error." 2Peter 2:18
So when preaching the gospel, be clear that the intent to change ones sinful behavior is a condition for salvation inherent in saving faith.