Contradiction with Proverbs 15:1
While Isaiah 36:21 describes being silent, Proverbs 15:1 emphasizes the power of a soft answer to diffuse anger, implying speech is valuable.
Proverbs 15:1: A soft answer turneth away wrath: but grievous words stir up anger.
Contradiction with Ecclesiastes 3:7
This verse acknowledges a time to keep silent and a time to speak, suggesting speaking may be appropriate in certain situations, unlike the silence in Isaiah 36:21.
Ecclesiastes 3:7: A time to rend, and a time to sew; a time to keep silence, and a time to speak;
Contradiction with Matthew 10:19-20
Encourages speaking by trusting the Spirit to provide words, in contrast to the silence described in Isaiah 36:21.
Matthew 10:19-20: But when they deliver you up, take no thought how or what ye shall speak: for it shall be given you in that same hour what ye shall speak.
Contradiction with Acts 18:9
God instructs not to be silent but to speak boldly, contrary to the silence heeded in Isaiah 36:21.
Acts 18:9: Then spake the Lord to Paul in the night by a vision, Be not afraid, but speak, and hold not thy peace: