God the Father promised to be with his Christ through the whole of his undertaking. Psalms 89:22, etc. But observe how the church hath an eye to the merits of Jesus's obedience and sacrifice. And what the heart's desire of Jesus was, is read to us in every part of the Bible. The promises of God are also in covenant to the same. Psalms 21:2; Isaiah 53:10.
Related Commentaries of Psalms 20:2
Psalms 20:2-4
2 Send thee helpb from the sanctuary, and strengthen thee out of Zion;
3 Remember all thy offerings, and acceptc thy burnt sacrifice; Selah.
4 Grant thee according to thine own heart, and fulfil all thy counsel.