Our worship service opens with an official “Call to Worship” in which the minister invites participants to verbally respond to God with one voice (Acts 4:24-31; 2 Chron. 5:13; Ezra 3:1; Neh. 8:1), usually by reciting portions of a Biblical Psalm. This responsive reading (Is. 6:3; Rev. 4:8-11; 7:10-12; Eph. 5:19-20) is followed by a prayer of adoration, and a song of praise unto God. The practice recalls the manner in which God once “called” Moses unto Himself, and provided the prophet with explicit instructions for how to approach Him in reverence and according to the appropriate rites (Lev. 1:1; cf. Ex. 3:4; 19:3). The same call-response pattern reappears in the ministries of several Biblical prophets culminating in that of the Divine Christ (John 17:8). Various Psalms also contain formal calls to worship (Ps. 105:1; 106:1; 107:1; 113:1; 118:1-2) that would have been directed to the assembly of Israel as the people ascended the temple mount for worship (Ps. 134). Ultimately the Call to Worship reminds us that our relationship to God has been initiated by His powerful calling, through which He has drawn us unto Himself, and given us new life by the Holy Spirit (Rom. 8:28; 1 Cor. 1:10-12).