Chose (exelexato). First aorist middle (indirect), selected for himself. Israel was the chosen people. Exalted (upswsen). From upsow, late verb from upso so often used of Christ. When they sojourned (en th paroikiai). In the sojourn. Late word from paroiko (sojourner, dweller, Acts 7:6 ) common in LXX. In N.T. only here and 1 Peter 1:17 . With a high arm (meta braciono upshlou). Vivid picture from the LXX ( Exodus 6:1Exodus 6:6 ; Deuteronomy 5:15 ; Psalms 136:12 ).