The church is defined as an assembly of believers who have been called by God. The word church refers to a popular meeting, especially a religious congregation or assembly. This assembly is mentioned in both Old and New Testament examples where the children of Israel are described as the assembly of God. In the New Testament the term explodes after the giving of the Holy Spirit on the Day of Pentecost as God calls people into His church. Those who are called come together and assemble in doctrine and fellowship. The writer of Hebrews commands them not to forsake the assembling of themselves together but to exhort one another and so much more as the Day approaches. The church is therefore the called out assembly of God's people who are led by the example of Jesus Christ. They follow the teachings from God's Word and strive to overcome sin and this world as He prepares them for the positions and roles that await when Christ returns.

Leviticus 23 reveals that God's Holy Days are not merely appointments to attend but sacred times to be actively proclaimed and observed. The call to "proclaim" and gather in "holy convocations" points to both public worship and personal transformation. Hebrews 10:24-25 emphasizes the importance of assembling with fellow believers, while Isaiah 58 connects proclaiming God's holy time with repentance and delighting in His ways. True observance goes beyond outward religious practice; as Jeremiah 9 and Romans 2-3 emphasize, knowing God and obeying Him must involve the heart. Malachi 4 and Mark 1 likewise connect repentance with preparation for God's Kingdom. God's people are therefore called not simply to attend holy gatherings, but to live transformed lives that reflect His character and proclaim His glory while looking forward to His Kingdom.

Christians are commanded to assemble together on a weekly basis as a support system where they receive and give encouragement, admonishment, and nurturing through interactions, conversations, and sermons. This assembly fulfills the expectation in Hebrews 10:23-25 to hold fast to hope while stirring up love and good works by exhorting one another, especially as the Day approaches. Those who prefer remaining separate miss the spirit present in the congregation, which God places individuals within according to His will so they may both minister and be ministered to. The practice connects directly to the broader call to develop the character of encouragement modeled by Barnabas, as the gathering provides the setting where believers strengthen one another, share God's comfort, and grow in humility and unity of purpose, ensuring the gift of encouragement is stewarded for the benefit of all.