Romans 2:7 - Matthew Poole's English Annotations on the Holy Bible

What he had laid down in general, he amplifies more particularly. Patient continuance; or perseverance in well doing, which implies patience: see Matthew 2:22; Matthew 10:13 Hebrews 10:36. Immortality; or incorruption: he adds this to show, that the glory and honour he speaks of was not such as the Gentiles usually sought, who made worldly glory the scope of their actions; but it was eternal in the heavens, and such as never fades away. Eternal life; i.e. God will render eternal life to such: the word render must be supplied out of the former verse.