Reference

John 3:36; Hebrews 3:12

He that believeth on the Son hath everlasting life: and he that believeth not the Son shall not see life; but the wrath of God abideth on him. - John 3:36

Take heed, brethren, lest there be in any of you an evil heart of unbelief, in departing from the living God. - Hebrews 3:12