Ephesians 6:15

Preparation [ε τ ο ι μ α σ ι α]. Only here in the New Testament. The Roman soldier substituted for the greaves of the Greek (metal plates covering the lower part of the leg) the caligae or sandals, bound by thongs over the instep and round the ankle, and having the soles thickly studded with nails. They were not worn by the superior officers, so that the common soldiers were distinguished as caligati. Etoimasia means readiness; but in Hellenistic Greek it was sometimes used in the sense of establishment or firm foundation, which would suit this passage : firm - footing. Compare Isaiah 52:7.