This root form (lemma) is used in 3 different forms in the NT: τήρησιν (AFS), τήρησις (NFS), τηρήσει (DFS).
It is glossed in 2 different ways: ‘jail’, ‘keeping’.
OET ACTS 4:3 Greek word=τήρησιν (taʸraʸsin) Morphology=AFS English gloss=‘jail’ SR GNT ACTS 4:3 word 11
OET ACTS 5:18 Greek word=τηρήσει (taʸraʸsei) Morphology=DFS English gloss=‘jail’ SR GNT ACTS 5:18 word 14
OET 1COR 7:19 Greek word=τήρησις (taʸraʸsis) Morphology=NFS English gloss=‘keeping’ SR GNT 1COR 7:19 word 11