Contradiction with Matthew 6:3
Encourages giving in secret, which may contradict the public setting implied by laying aside donations on the first day of the week.
Matthew 6:3: But when thou doest alms, let not thy left hand know what thy right hand doeth:
Contradiction with Acts 4:34-35
Describes communal sharing where distribution was made based on need, contrasting with individual setting aside of funds.
Acts 4:34-35: Neither was there any among them that lacked: for as many as were possessors of lands or houses sold them, and brought the prices of the things that were sold,
Contradiction with Matthew 19:21
Encourages selling possessions and giving to the poor for treasure in heaven, which is a different approach than regular contributions.
Matthew 19:21: Jesus said unto him, If thou wilt be perfect, go [and] sell that thou hast, and give to the poor, and thou shalt have treasure in heaven: and come [and] follow me.
Contradiction with 2 Corinthians 9:7
States that giving should be of one's own accord and not under compulsion, which may seem different from regular and systematic setting aside.
2 Corinthians 9:7: Every man according as he purposeth in his heart, [so let him give]; not grudgingly, or of necessity: for God loveth a cheerful giver.
Contradiction with Luke 18:22
Advises selling all possessions and distributing to the poor, which is more radical than setting aside a portion weekly.
Luke 18:22: Now when Jesus heard these things, he said unto him, Yet lackest thou one thing: sell all that thou hast, and distribute unto the poor, and thou shalt have treasure in heaven: and come, follow me.