They sailed away to Antioch (apepleusan eis Antiocheian). Effective aorist active indicative of apopleō, to sail off. They had been gone some eighteen months.
They had been committed (ēsan paradedomenoi). Periphrastic past perfect passive of paradidōmi, old and common verb. High and serious thoughts filled the hearts of these first returned missionaries as they neared home. The grace of God had been with them. They had fulfilled (eplērōsan) the work to which they had been set apart by the Holy Spirit with the prayers of the Antioch church. They now had a wondrous story to tell.