John Gill Reformed Baptist @doctorgill

I go the way of all the earth,.... A path which is the path of death (o), which all pass in, kings and peasants, high and low, rich and poor, great and small, good and bad; none are exempted, all must die, and do; it is the appointment of God, a decree which can never be reversed; all experience confirms it: this same phrase is...

Jamieson-Fausset-Brown Reformed @jfbcommentary

I go the way of all the earth--a beautiful and impressive periphrasis for death. be thou strong, . . . show thyself a man--This counsel is similar to the apostolic direction (Co1 16:13) and refers to the fortitude or strength of mind that was required to discharge the onerous functions of king.

Geneva Bible Notes Reformed @genevanotes

I go the way of all the earth: be thou strong therefore, and shew thyself a man; (a) I am ready to die as all men must.