John 5:19
Then answered Jesus and said unto them, Verily, verily, I say unto you, The Son can do nothing of himself, but what he seeth the Father do: for what things soever he doeth, these also doeth the Son likewise.
Primary
What this passage establishes
The Son acts in complete dependence on and revelation of the Father rather than as a rival deity.
Why it matters in the argument
The Son’s real human life explains prayer, obedience, growth, suffering, mediation, and limited human experience without making Jesus less than fully divine.
Apostolic connection
Apostolic teaching distinguishes the eternal Spirit from the genuine humanity God assumed. It does not turn that distinction into separate divine beings.
Common misunderstanding
The answer is not that Jesus pretended to pray or suffer. The incarnate Son truly lived a human life in relation to God while the fullness of God dwelt in Him.
How to use it in conversation
Name the human action honestly, then pair it with an indwelling or deity passage so neither side of the incarnation is erased.