Adam Clarke on 1 Corinthians 4:11

We both hunger and thirst, etc. - Who would then have been an apostle of Christ, even with all its spiritual honors and glories, who had not a soul filled with love both to God and man, and the fullest conviction of the reality of the doctrine he preached, and of that spiritual world in which alone he could expect rest? See the Introduction, Section 6.

Have no certain dwelling place - We are mere itinerant preachers, and when we set out in the morning know not where, or whether we shall or not, get a night's lodging.