Explaining blessed us, in Eph 1:3. His blessing is in conformity with the fact that He chose.
Chose (ἐξελέξατο)
Middle voice, for himself.
In Him
As the head and representative of our spiritual humanity. Compare 1Co 15:22. Divine election is in Christ the Redeemer. The crown of divine sovereignty is redemption. God rules the world to save it.
Holy and without blame (ἁγίους καὶ ἀμώμους)
The positive and negative aspects of christian life. See on Col 1:22. Rev., without blemish. The reference is to moral rather than to forensic righteousness. Compare 1Th 4:7.
In love
Join with foreordained, Eph 1:5. Having in love foreordained.