For I testify about them that they have a zeal for God, but not in accordance with knowledge.
For I bear them record that they have a zeal of God, but not according to knowledge.
I bear them witness that they have a [certain] zeal and enthusiasm for God, but it is not enlightened and according to [correct and vital] knowledge.
For I bear them witness that they have a zeal for God, but not according to knowledge.
I can vouch for them: they are enthusiastic about God. However, it isn’t informed by knowledge.
For I offer testimony to them, that they have a zeal for God, but not according to knowledge.