Paul proceeded to conclude his revelation of the Christian"s individual calling in Christ ( Ephesians 1:3 to Ephesians 2:10). He began this section of the epistle by explaining the purpose of our calling (i.e, the glory of God, Ephesians 1:3-14). He then expounded the means whereby we appreciate our calling (i.e, knowledge given by the Holy Spirit through God"s Revelation , Ephesians 1:15-23). Finally, He enunciated the motive for our calling (i.e, the unmerited grace of God, Ephesians 2:1-10). [source][source][source]
These verses continue the theme of redemption ( Ephesians 1:7). This pericope is a condensation of Paul"s exposition of redemption in Romans. Whereas we were once dead to God ( Ephesians 2:1-3), we are now alive in God ( Ephesians 2:4-10). [source][source][source]
". . . what Paul does in this passage is to paint a vivid contrast between what man is by nature and what he can become by grace." [1][source]
"Having described our spiritual possessions in Christ, Paul turns to a complementary truth: our spiritual position in Christ. First he explains what God has done for all sinners in general; then he explains what God did for the Gentiles in particular." [2][source]