Mark 1:15  And saying, The time is fulfilled, and the kingdom of God is at hand: repent ye, and believe the gospel.

Luke 24:25  Then he said unto them, O fools, and slow of heart to believe all that the prophets have spoken:  (concerning Christ)

John 6:29  Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent.

John 8:24  I said therefore unto you, that ye shall die in your sins: for if ye believe not that I am he, ye shall die in your sins.

John 3:16  For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.

John 3:18  He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God.

John 6:69  And we believe and are sure that thou art that Christ, the Son of the living God.

Galatians 3:22 But the scripture hath concluded all under sin, that the promise by faith of Jesus Christ might be given to them that believe.

Acts 15:7  And when there had been much disputing, Peter rose up, and said unto them, Men and brethren, ye know how that a good while ago God made choice among us, that the Gentiles by my mouth should hear the word of the gospel, and believe.

Acts 16:31  And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house.

Romans 4:24-25  But for us also, to whom it shall be imputed, if we believe on him that raised up Jesus our Lord from the dead; Who was delivered for our offences, and was raised again for our justification.

2 Corinthians 4:4  In whom the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them.

Websters 1828 dictionary excerpt for the word “believe”:

BELIE'VE, v.t. To credit upon the authority or testimony of another; to be persuaded of the truth of something upon the declaration of another, or upon evidence furnished by reasons, arguments, and deductions of the mind, or by other circumstances, than personal knowledge. When we believe upon the authority of another, we always put confidence in his veracity.

In theology, to believe sometimes expresses a mere assent of the understanding to the truths of the gospel; as in the case of Simon. Act.8. In others, the word implies, with this assent of the mind, a yielding of the will and affections, accompanied with a humble reliance on Christ for salvation. John 1.12. 3.15.