How did the Son of the invisible God become visible to people?
The Son, who is the image of the invisible God, became visible tangibly. In the Old Testament economy He appeared temporarily then disappeared. In the New Testament He became visible, tangible, and touchable, living in the flesh by virtue of Bethlehem—God manifested in the flesh by the Son.
Les explains that Colossians 1:15 calls the Son the image—the visible, tangible evidence—of the invisible God. The triune God—Father, Son, and Spirit—is Spirit and invisible. Out of that invisible triune God stepped the Son. He became visible temporarily in the Old Testament economy and then disappeared, but in the New Testament account He became visible, tangible, and touchable. He lived in the flesh by virtue of Bethlehem, the same God now manifested in the flesh by the Son.
Who is the image of the invisible God, the firstborn of every creature:
How did the Son come to live in the flesh?
The Son came to live in the flesh by virtue of Bethlehem—His birth into humanity. Out of the invisible triune God, the Son stepped forth and became visible, tangible, and touchable in the New Testament account, the same God now manifested in the flesh as the Son.
How did the Son become visible in the Old Testament?
The Son, the image of the invisible God, stepped out of the invisible triune God and became visible in the Old Testament economy temporarily, then He would disappear. In the New Testament, He became visible, tangible, and touchable, living in the flesh by virtue of Bethlehem.