Ephesians 4:3

3being diligentσπουδάζοντεςto keepτηρεῖνtheτὴνunityἑνότηταof theτοῦSpiritπνεύματοςinἐνtheτῷbondσυνδέσμῳτῆςof peaceεἰρήνης·

being diligent to keep the unity of the Spirit in the bond of peace;