Psalms 42:1

Holy love to God as the chief good and our felicity is the power of godliness, the very life and soul of religion, without which all external professions and performances are but a shell and carcase: now here we have some of the expressions of that love. Here is, I. Holy love thirsting, love upon the wing, soaring upwards in holy desires towards the Lord and towards the remembrance of his name (Psa 42:1, Psa 42:2): "My soul panteth, thirsteth, for God, for nothing more than God, but still for more and more of him." Now observe, 1. When it was that David thus expressed his vehement desire towards God. It was, (1.) When he was debarred from his outward opportunities of waiting on God, when he was banished to the land of Jordan, a great way off from the courts of God's house. Note, Sometimes God teaches us effectually to know the worth of mercies by the want of them, and whets our appetite for the means of grace by cutting us short in those means. We are apt to loathe that manna, when we have plenty of it, which will be very precious to us if ever we come to know the scarcity of it. (2.) When he was deprived, in a great measure, of the inward comfort he used to have in God. He now went mourning, but he went on panting.

— Matthew Henry's Concise Commentary (public domain)