ἐπὶ πολλῆς ἡσυχίας καὶ ἠρεμίας ὑμῶν → leaving you entirely at rest
3ᵉ sg. impér. ao.2 de βαίνω.
βάτω: (ᾱ) Soph. 3 л. sing. imper. aor. 2 к βαίνω.