The Apostle Paul gives several extensive discourses on what is expected from the person who chooses to follow Christ.
The first examined here is in Galatians 5:16-26. The Christian is to avoid acts of the sinful nature which include "sexual immorality, impurity and debauchery; idolatry and witchcraft; hatred, discord, jealousy, fits of rage, selfish ambition, dissensions, factions and envy; drunkenness, orgies, and the like."
Behaviors the Christian should engage in are "love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control." These good behaviors Paul describes are the fruits of the Spirit from God.
Ephesians 4:17-32 also gives behavioral instructions for Christians. Christians are to "put on the new self" and "speak truthfully." A Christian is not to let anger cause them to sin, they are not to steal, or "let any unwholesome talk come out of your mouths." Words that a Christian speak should be "helpful for building others up."
Paul instructs Christians in this discourse to "Get rid of all bitterness, rage and anger, brawling and slander, along with every form of malice. Be kind and compassionate to one another, forgiving each other, just as in Christ God forgave you."