to make something great: to enlarge or lengthen it, or to make it loom large by acting
This is the plainest, most physical side of the word. At its simplest it means to make a thing bigger: to lengthen a tassel, to widen a border. From there it stretches naturally to size of every kind, so it can describe a mission that grows in reach or an influence that spreads.
The word also has a special use where God is the one doing the enlarging. When God "makes great" his mercy toward a person, the point is not that he talks it up but that he acts, pouring out kindness so generously that it stands out and cannot be missed. English often smooths this into "showed great mercy," which captures the result but hides the picture of something being made to loom large.
What holds these together is the idea of increase: taking something and making it larger, fuller, or more prominent than it was.
Nuances
Whether the verb here means the enlargement of Paul's missionary sphere or the magnifying of his own reputation among the Corinthians.
- majorityPaul's apostolic sphere of work will be enlarged in scope and extent as the Corinthians' faith grows.; M. E. Thrall, The Second Epistle to the Corinthians, ICC (T&T Clark, 2000), 2:646-48; M. J. Harris, The Second Epistle to the Corinthians, NIGTC (Eerdmans, 2005), 720-22
- minorityThe verb also carries a nuance of Paul's own reputation or honor being magnified, alongside the extension of his territory.; C. K. Barrett, A Commentary on the Second Epistle to the Corinthians, BNTC (A. & C. Black, 1973), 264-66