Irenaeus

For as, in the New Testament, that faith of men [to be placed] in God has been increased, receiving in addition [to what was already revealed] the Son of God, that man too might be a partaker of God; so is also our walk in life required to be more circumspect, when we are directed not merely to abstain from evil actions, but even from evil thoughts, and from idle words, and empty talk, and scurrilous language: thus also the punishment of those who do not believe the Word of God, and despise His advent, and are turned away backwards, is increased; being not merely temporal, but rendered also eternal.