NET

12 to equip the saints for the work of ministry, that is, to build up the body of Christ,

Darby

12 for^D8628 the perfecting of the saints; with a view to [the] work of [the] ministry, with a view to the edifying of the body of Christ^D8629;

Darby Bible Notes

for - Pros. It directs attention to the object when reached, or when the subject is at, or with the object. 'The Word was with (pros) God,' John 1.1. Eis 'with a view to' here, and 'at' three times, ver. 13, refers to the object in the mind of the person. See Mark 11.1, where 'to' (twice) is eis, and 'at' is pros. Christ - Or 'of the Christ.'

KJV

12 For the perfecting of the saints, for the work of the ministry, for the edifying of the body of Christ: