If the work that anyone has built on the foundation survives, he will receive a reward.
14. If any man’s work remains, he will receive a reward. His meaning is, that those are fools who depend on man’s estimation, so as to reckon it enough to be approved by men, for then only will the work have praise and recompense — when it has stood the test of the day of the Lord Hence he exhorts His true ministers to have an eye to that day.
Here the apostle informs us what foundation he had laid at the bottom of all his labours among them - even Jesus Christ, the chief corner-stone, Eph 2:20. Upon this foundation all the faithful ministers of Christ build. Upon this rock all the Christians found their hopes. Those that build their hopes of heaven on any other foundation build upon the sand.
Commenting on 1 Corinthians 3:11-15
If any man's work abide,.... That is, if any minister's doctrine will bear the test of daylight, to be looked into, and abide the fire of the word; as gold, silver, and precious stones will, or such doctrines as are comparable to them, which will shine the brighter for being tried by this fire: which he hath built thereupon; upon the foundation Christ, in entire...