The issue of Judaizing emerges in the context of Sabbath observance, revealing a significant departure from the original practices established by Jesus Christ, who is also Yahweh Elohim, the Creator God of the Old Testament. The Council of Laodicea in AD 364 decreed that Christians shall not Judaize and be idle on Saturday but shall work on that day, instead honoring Sunday, falsely termed the Lord's day, and, if possible, doing no work on it. It further stated that if Christians are found Judaizing, they shall be shut out from Christ. This shift from the seventh-day Sabbath to Sunday, unsupported by Christ or the apostles, reflects a rejection of the law created by Yahweh Elohim and an acceptance of human authority over divine command. The Catholic Church openly claims to have changed the day from Saturday to Sunday by virtue of her divine mission, a change that Protestant churches also follow, thereby bowing to papal authority rather than the unchanging authority of Jesus Christ.

In the early fourth century, as historical records note, Emperor Constantine, driven by political motives, issued a civil decree on March 7, 321 AD, making Sunday a day of rest, declaring that all judges, city people, and craftsmen shall rest on the venerable day of the sun. This edict marked the first law, whether human or divine, establishing Sunday as a sacred day of rest, aligning with the majority pagan practice of sun worship. Following this, the Roman papacy at the Council of Laodicea in 364 AD passed a law condemning the practice of resting on Saturday, labeling it as Judaizing, and mandated that Christians shall not Judaize and be idle on Saturday but shall work on that day; instead, they shall especially honor the Lord's day, and, if possible, do no work on that day. The decree further stated that if Christians are found Judaizing, they shall be shut out from Christ. Eusebius, a noted Roman Catholic bishop, affirmed this shift, declaring that all things which were a duty to do on the Sabbath have been transferred to the Lord's day. Thus, a human hand, rather than a divine one, altered the day of rest, overriding the Sabbath ordained by God.

In the history of the true church of God, a significant attack on its doctrines occurred in the fourth century, particularly concerning the observance of the weekly Sabbath. The issue became a point of contention for the Roman Catholic Church, leading to the Council of Laodicea in AD 364. At this council, attended by several hundred bishops, a decree was passed prohibiting Christians from Judaizing, which meant resting from work on Saturday as the Jews did. This law was deemed necessary due to the rapid increase in Saturday Sabbath observance throughout the Eastern church. The Roman Catholic Church's stance against Judaizing was further reinforced by civil and ecclesiastical authority over time. The first notable legislation on this matter was the law of Constantine in AD 321 at the Council of Nicaea, which began the shift toward Sunday observance. Subsequent councils in the fourth and fifth centuries solidified the first day of the week as a required day of rest under Roman Catholic authority, marking a significant departure from the seventh day Sabbath as prescribed in Scripture. Despite this, witnesses to the true Sabbath persisted through the centuries, often under severe persecution. The prohibition of Judaizing and the enforcement of Sunday observance highlight the broader struggle of the true church to maintain its identity against the pressures of counterfeit Christianity. This change, unsupported by Scripture, became a visible sign distinguishing the true church of God, which continued to uphold the seventh day Sabbath as a key identifier of its faith.