WSC Q.50: What is required in the second commandment?
The second commandment requireth the receiving, observing, and keeping pure and entire, all such religious worship and ordinances as God hath appointed in his Word. (Deut. 32:46, Matt. 28:20, Acts 2:42)
WLC Q.108: What are the duties required in the second commandment?
The duties required in the second commandment are, the receiving, observing, and keeping pure and entire, all such religious worship and ordinances as God hath instituted in his word; (Deut. 32:46–47, Matt. 28:20, Acts 2:42, 1 Tim. 6:13–14) particularly prayer and thanksgiving in the name of Christ; (Phil. 4:6, Eph. 5:20) the reading, preaching, and hearing of the word; (Deut. 17:18–19, Acts 15:21, 2 Tim. 4:2, James 1:21–22, Acts 10:33) the administration and receiving of the sacraments; (Matt. 28:19, 1 Cor. 11:23–30) church government and discipline; (Matt. 18:15–17, Matt. 16:19, 1 Cor. 5, 1 Cor. 12:28) the ministry and maintainance thereof; (Eph. 4:11–12, 1 Tim. 5:17–18, 1 Cor. 9:7–15) religious fasting; (Joel 2:12,18, 1 Cor. 7:5) swearing by the name of God; (Deut. 6:13) and vowing unto him; (Isa. 19:21, Ps. 76:11) as also the disapproving, detesting, opposing all false worship; (Acts 17:16–17, Ps. 16:4) and, according to each one’s place and calling, removing it, and all monuments of idolatry. (Deut. 7:5, Isa. 30:22)