JMNT(i)
2 For I am habitually testifying and giving evidence among them, because they continue possessing a zeal from God (or: For you see, I can repeatedly bear witness to and for them that they constantly hold God's zeal and they continuously have a boiling jealously and hot aspiration concerning God), but however, not down from (or: on the level of and in accordance with) full and accurate experiential knowledge, recognition or insight (epi-gnosis).