This is the immediate problem Jesus addresses: the impossibility of a rich man entering the kingdom, which God alone can overcome.

Genesis 18:14 asks 'Is anything too hard for the Lord?' — the same idea that with God nothing is impossible, confirming Jesus' statement.

In Numbers 11:23, God asks if His arm is too short, directly paralleling the truth that nothing is impossible for Him.

In Job 42:2, Job declares God can do all things and no purpose can be thwarted, echoing the same confession of divine omnipotence.

Jeremiah 32:27 asks 'Is anything too hard for me?' — a direct rhetorical parallel to the idea that with God all things are possible.

Mark 10:27 records Jesus’ identical statement in the same context, directly paralleling Matthew's version of the teaching.

Luke 1:37 says 'nothing will be impossible with God' in the annunciation, affirming the same truth in a different setting.

Luke 18:27 gives the same saying after the rich young ruler, another synoptic parallel reinforcing that what is impossible for man is possible for God.

Jonathan's statement that nothing restrains God from saving by many or few directly echoes 'with God all things are possible'.

Abraham was fully persuaded that God was able to do what He promised — the same conviction that underlies 'all things are possible'.