What kind of worship results from false teaching?

Answer

"But in vain they do worship Me, teaching for doctrines the commandments of men." Matt. 15: 9.

Why did John write his testimony concerning God's love and purpose in giving Christ?
Of what were the works of Abraham an evidence?
Who has borne our sins, and stands ready to help us?
What were these gifts that Christ gave to men?
How does the Lord, through the prophet Isaiah, indicate what is true Sabbath-keeping?
Who first enjoined Sunday-keeping by law?
By what authority was Sunday Sabbath-keeping instituted?

Questions & Answers are from the book Bible Readings for the Home Circle