In this video, Stephen Tong gives a definition of biblical conversion.
Conversion means that you repent from your sin, turn to Jesus Christ, and accept your salvation. Conversion is the work started from the Holy Spirit’s work of regeneration. And afterwards, a man will be changed in his total quality of life and set about a new direction to live before God. And this kind of change will cause him to have a new life and new good works manifested in his daily life and his actions.