You will see heaven open, and the angels of God ascending and descending on the Son of Man. –John 1:51
The ladder Jacob dreamed of, in Genesis 28:12-15, is the bridge from earth to heaven, and from heaven to earth; and the bridge is Jesus Christ Our Lord, the Son of God, the Son of Man.
So, you see, this old spiritual has it right. We are always climbing Jacob’s ladder. Jesus is the only way to get to God.