John Gill Commentary Psalms 142:5

"I cried unto thee, O Jehovah; I said, Thou art my refuge, My portion in the land of the living." — Psalms 142:5 (ASV)

I cried unto you, O Lord
Finding no help from man, he turns to the Lord, and directs his prayer to him in his distress; I said, you [are] my refuge ;
as he was, from all his enemies that were in pursuit of him, and from the storm of calamities he apprehended was coming upon him: and a refuge the Lord is to all your people in time of trouble; and where they always meet with sustenance, protection, and safety; he being a strong habitation, a strong hold, a strong refuge, to which they may resort at all times; and such is Christ to all sensible sinners that flee unto him, (Hebrews 6:18) ; [and] my portion in the land of the living ;
and a most excellent one he is, a large, immense, and inconceivable portion; he and all your perfections, purposes, promises, and blessings, being included in it; a soul-satisfying one, and which will never be taken away nor consumed; it is a portion in the present life; it will last as long as life lasts, and continues unto death, and at death, and for evermore, (Psalms 73:26) .