Romans 10:6-9

Romans 10:6-9. But the righteousness which is of faith speaketh on this wise, Say not in thine heart, Who shall ascend into heaven? (that is, to bring Christ down from above:) Or, who shall descend into the deep? (that is, to bring up Christ again from the dead.) But what saith it? The word is nigh thee, even in thy mouth, and in thy heart: that is, the word of faith, which we preach; That if thou shalt confess with thy mouth the Lord Jesus, and shall believe in thine heart that God hath raised him from the dead, thou shalt be saved.

How very simple! No climbing, no diving, no imagining, no long reckoning of the understanding, no strangling of the mental faculties. It is just believe God’s testimony concerning his Son, and thou shalt be saved.