Contradiction with Ecclesiastes 1:18
Contradicts Acts 19:20 by suggesting that increasing knowledge leads to sorrow rather than growing mightily as the word of God did in Acts 19:20.
Ecclesiastes 1:18: For in much wisdom [is] much grief: and he that increaseth knowledge increaseth sorrow.
Contradiction with 1 Corinthians 1:18
Contradicts Acts 19:20 by implying that the message of the cross is foolishness to those who are perishing, rather than prevailing as described in Acts 19:20.
1 Corinthians 1:18: For the preaching of the cross is to them that perish foolishness; but unto us which are saved it is the power of God.
Contradiction with Matthew 7:14
Contradicts Acts 19:20 by indicating that the path to life is narrow and only a few find it, whereas Acts 19:20 describes the word prevailing mightily.
Matthew 7:14: Because strait [is] the gate, and narrow [is] the way, which leadeth unto life, and few there be that find it. [Because: or, How]
Contradiction with Hebrews 4:2
Contradicts Acts 19:20 by stating that the word preached did not profit some because it was not mixed with faith, unlike the prevailing of the word in Acts 19:20.
Hebrews 4:2: For unto us was the gospel preached, as well as unto them: but the word preached did not profit them, not being mixed with faith in them that heard [it]. [the word...: Gr. the word of hearing] [not being...: or, because they were not united by faith to]
Contradiction with Jeremiah 7:27
Contradicts Acts 19:20 by suggesting that God's words may not be heard or heeded by people, in contrast to the prevailing of the word in Acts 19:20.
Jeremiah 7:27: Therefore thou shalt speak all these words unto them; but they will not hearken to thee: thou shalt also call unto them; but they will not answer thee.