I [am] my beloved's,.... These are the words of the church, strongly expressing the assurance of faith she had of her union to Christ, and interest in him; which shows that "that" grace is attainable, and that there may be a continuation of the exercise of it; it may be expressed again and again, as it is by the church in this Song, So 2:16; and that the exercise of it often follows, upon the enjoyment of Christ's presence, as here, upon his going tap to the palm tree; and that this grace has no tendency to licentiousness, but excites to duty, and makes more careful in it, of which So 7:11 is a proof, "Come, let us go forth", &c.
Moreover, these words may be considered as a modest acknowledgment of the church's, that all she were and had were Christ's, and came from him; all the beauty he had commended in her; all fruitfulness in grace, and strength in the exercise of it; her light and knowledge in divine truths; her zeal and courage to defend them; her upright stature, and holy walk and conversation, and every good thing else, were owing to his grace.
And here she also makes a voluntary surrender of all to him again; as she received all from him, she devotes all to him:and his desire [is] towards me; and only to her, as his spouse and bride: it was towards her from everlasting, when he asked her of his Father, and he gave her to him; and so it was in time, to procure her salvation; hence he became incarnate, and suffered and died in her stead: his desire is towards his people before conversion, waiting to be gracious to them; and, after conversion, to have their company, and their grace exercised on him, and to behold their beauty; nor will his desires be fully satisfied until he has got them all with him in glory.
And this phrase not only signifies the conjugal relation of the church to Christ, he being her husband, and she his wife, the desire of his eyes, as a wife is called, Eze 24:16; but takes in the whole care and concern of Christ for her, as her husband; who sympathizes with her under all her distresses; protects her from all dangers and enemies; and provides everything necessary for her, for time and eternity.
Some render the words, "seeing his desire is towards me" ; therefore she expresses her faith in him, and gives up herself to him.