Contradiction with John 18:20
Jesus said he always taught openly in synagogues and the temple, contradicting Acts 13:44's sense of a special large gathering.
John 18:20: Jesus answered him, I spake openly to the world; I ever taught in the synagogue, and in the temple, whither the Jews always resort; and in secret have I said nothing.
Contradiction with 1 Corinthians 14:23
An entire church gathering attracts unbelievers and the ungifted, which contrasts with the committed audience in Acts 13:44.
1 Corinthians 14:23: If therefore the whole church be come together into one place, and all speak with tongues, and there come in [those that are] unlearned, or unbelievers, will they not say that ye are mad?
Contradiction with Luke 4:24
Jesus states a prophet is accepted everywhere except his own country, whereas Acts 13:44 depicts acceptance in a synagogue context.
Luke 4:24: And he said, Verily I say unto you, No prophet is accepted in his own country.
Contradiction with Mark 1:45
A leper disobeys Jesus and spreads news, causing Jesus to withdraw due to large crowds, opposing the call for a gathering in Acts 13:44.
Mark 1:45: But he went out, and began to publish [it] much, and to blaze abroad the matter, insomuch that Jesus could no more openly enter into the city, but was without in desert places: and they came to him from every quarter.
Contradiction with Acts 6:1
Early disputes within the church over daily ministry contrast with the unified attendance described in Acts 13:44.
Acts 6:1: And in those days, when the number of the disciples was multiplied, there arose a murmuring of the Grecians against the Hebrews, because their widows were neglected in the daily ministration.