'Fornication' in the Bible

Yet let us send them written instructions to abstain from things polluted by connexion with idolatry, from fornication, from meat killed by strangling, and from blood.

You must abstain from things sacrificed to idols, from blood, from things strangled, and from fornication. Keep yourselves clear of these things, and it will be well with you. Farewell."

But as for the Gentiles who have accepted the faith, we have communicated to them our decision that they are carefully to abstain from anything sacrificed to an idol, from blood, from what is strangled, and from fornication."