One such term or expression is "Ask Jesus into your heart". The same expression is sometimes phrased, "Ask Jesus into your life", or "Invite Jesus into your heart". NOWHERE DOES ONE FIND ANYTHING LIKE THIS IN THE BIBLE. The Bible says, "Unless a man be born of the water and the spirit, he shall not enter the kingdom of heaven"-John 3:5 Why don't we use scripture? Why not drop the traditional phraseology of the modern church?
I believe this is from Romans 10:9-10
Rom 10:9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.
Rom 10:10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.
We must believe with the heart, God the Father must speak to our hearts through the Holy Ghost and Jesus becomes one with us through His Spirit. I suppose in truth we are connected to him as branches to the fvine (John5), yet he comes within us through the Holy Spirit. The Holy Spirit is our connection. As Jesus Spoke of the living waters, (John 4) an inexhaustible supply of his Spirit and His word flowing out to the worlds needs. All need Jesus.
John 1:12 But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name:
John 1:13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.
Belief in the name of Jesus resulting in the power of God within to become Sons of God, His doing. We first must believe in Him and confess Him before men, God does the changing of our heart. The Baptism of Jesus is of the Spirit. Water baptism is in obedience, a sign of the new covenant. The presence of God's Spirit within is salvation, and Jesus is in the Spirit. Denominations focus on certain things, the Bible is bigger than most see.
Rom 8:9 But ye are not in the flesh, but in the Spirit, if so be that the Spirit of God dwell in you. Now if any man have not the Spirit of Christ, he is none of his.