John Trapp on Psalms 16:5

Verſ. 5. The Lord is the Portion of mine inheritance] Therefore I have neither need nor mind to run a madding after dumb Idols▪ for hee is Good originall, univerſall, all-ſufficient and ſatisfactory, proportionable, and fitting to my ſoul, ſo that having Him, I am abundantly provided for.

And of my cup] A phraſe taken from thoſe ſhares that every one had aſſigned unto him at feaſts, Gen. 43.34. 1 Sam. 1.4. & 9.23. q. d. Thou art my meat and my drink Lord, and I am very well content with my condition, bee it better or worſe. That which gives quiet in any portion, is firſt, The favour and preſence of God; ſecondly, that tis from the hand of a Father; thirdly, that it comes to us in the covenant of grace; fourthly, that tis the purchaſe of Chriſts blood; fifthly, that tis an anſwer of prayers; and a bleſſing from above on honeſt indeavours.

Thou maintaineſt my lot] Upholdeſt mee in a good condition, who ſhould otherwiſe ſoon loſe and forgoe it, were it in mine own keeping. And here the Pſalmiſt uſeth four ſeverall words, all to the ſame ſenſe, ad corroborandum ſaith R. David.