“Can one person worship alone if there are no others to worship with?” There are five acts of worship in Christianity about which one can read in Scripture. They are in no particular order: prayer, Lord’s Supper, giving, preaching and singing hymns (Acts 2:42; Acts 20:7; 1 Corinthians 16:1-2; Ephesians 5:19). Ideally, Christians in a community assemble together for worship; especially the preaching and the singing are instructive toward the group gathered together for worship. Obviously, preaching touches those present, but singing involves “teaching and admonishing one another” (Colossians 3:16). Whenever Christian brethren have the opportunity, they need to worship together.
However, the question supposes that there are no other Christians with whom one can worship. Can one, then, worship God without other Christians present with whom he or she can participate in worship? Though it may be more uplifting for several Christians to worship together, there is neither logical nor biblical reason why a single Christian cannot worship God. “Yes,” one person can worship alone if there are no others with whom to worship.
Edification can occur upon studying God’s Word or perhaps by auditing a recorded sermon or watching a video sermon. One can sing alone, too; the lyrics of hymns are instructive to the one singing as well as constituting praise to God. Giving can occur whereby some aspect of Christian service can occur. Certainly, a group is unnecessary for prayer to be effective. One person can commune with Jesus Christ in the Lord’s Supper (Mark 14:25).
Doubtless, some souls have no recourse but to worship alone due to circumstances that they cannot alter. Given the choice to worship God or not to worship God, surely any Christian would choose to worship – even if he or she must do it alone.