Contradiction with 1 Corinthians 14:33
This verse mentions that God is not the author of confusion, whereas Acts 13:2 describes a scenario where multiple voices (the prophets and teachers) could potentially lead to confusion about God's direct message.
1 Corinthians 14:33: For God is not [the author] of confusion, but of peace, as in all churches of the saints. [confusion: Gr. tumult, or, unquietness]
Contradiction with Exodus 20:8-10
In these verses, the Sabbath is to be a day of rest, yet Acts 13:2 describes worship and fasting on the Sabbath in a manner that suggests active ministry.
Exodus 20:8-10: Remember the sabbath day, to keep it holy.
Contradiction with 1 John 4:1
This verse instructs believers to test the spirits to see if they are from God, which could contradict Acts 13:2 where the voice of the Holy Spirit is accepted without testing.
1 John 4:1: Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets are gone out into the world.
Contradiction with 1 Timothy 2:12
This verse states that a woman should not teach, yet Acts 13:2 takes place in a context of church leadership involvement where possibly women could be involved in teaching or decision-making.
1 Timothy 2:12: But I suffer not a woman to teach, nor to usurp authority over the man, but to be in silence.