1 Corinthians 2:1

that the natural man cannot understand it.
Overview - 1 Corinthians 2
He declares that his preaching, though it bring not excellency of speech, or of human wisdom, yet consists in the power of God;
and so far excels the wisdom of this world, and human sense,
Treasury of Scripture Knowledge

1 Corinthians 2:1  (King James Version)
And I, brethren, when I came to you, came not with excellency of speech or of wisdom, declaring unto you the testimony of God.
 


when
Acts 18:1-4

with
1 Corinthians 2:4 1 Corinthians 2:13 ; 1:17 Exodus 4:10 ; Jeremiah 1:6 Jeremiah 1:7 ; Romans 16:18 ; 2 Corinthians 10:10 ; 11:6

the testimony
1:6 Isaiah 8:20 ; Acts 20:21 ; 22:18 2 Thessalonians 1:10 ; 1 Timothy 1:11 ; 2 Timothy 1:8
1 John 4:14 ; 5:11-13 Revelation 1:2 Revelation 1:9 ; 19:10