Personally, this writer prefers the Sabbath Day for worship – the day commemorating God’s rest from the work of creation. Nevertheless, he also realizes that he is in no position to judge others for choosing to worship God on Sunday or some other day of the week. The plain truth is that true Christians should be worshiping God every day of the week and always resting from the works of this world and its prince (Satan the devil).
Paul warned the saints at Rome not to be in the habit of judging each other with regard to these types of questions. He said: “Who art thou that judgest another man’s servant? To his own master he standeth or falleth. Yea, he shall be holden up: for God is able to make him stand. One man esteemeth one day above another: another esteemeth every day alike. Let every man be fully persuaded in his own mind. He that regardeth the day, regardeth it unto the Lord; and he that regardeth not the day, to the Lord he doth not regard it.” (Romans 14:4-6) God give us all the strength of mind to focus on the worship and the rest that we owe to him, and not worry about judging each other concerning the day on which God has given to each one of us to perform those things.