The speaker in vv. 1-5 is not Solomon nor the Shulammite but a third one, who signifies the Spirit. The Spirit is one with Christ (2 Cor. 3:17) and one with the believers (Rev. 22:17). Thus, when He speaks, it is as if the two are speaking.
Solomon is the lord of many vineyards (v. 12), which require much labor. At this point the Shulammite must become Solomon’s co-worker. This indicates that eventually Christ’s lovers need to share in the work of the Lord. Their qualification for this depends on their being equipped with all the attributes of the divine life. Verses 1-5 in this chapter are the Spirit’s review of the virtues of the lover, which presents a beautiful portrait of the lovely lover of Christ from her feet to her head as an expression of Christ, whom she loves (cf. S.S. 6:4-10). Such virtues are signs of her maturity in the divine life and qualify her to share in the Lord’s work (cf. 2 Cor. 1:12; 2:14-17; 11:10a; 1 Thes. 2:1-12).