Blessed God - Thanked or praised God.

Then took he him up in his arms - What must the holy soul of this man have felt in this moment! O inestimable privilege! And yet ours need not be inferior: If a man love me, says Christ, he will keep my word; and I and the Father will come in unto him, and make our abode with him. And indeed even Christ in the arms could not avail a man, if he were not formed in his heart.

Then took he him up in his arms,.... That same Spirit that had revealed unto him that he should not die till he saw the Messiah with his bodily eyes; and who by a secret impulse had moved him to go to the temple just at this time made known unto him that that child which Joseph and Mary then brought into the temple to present to the Lord, was the Messiah; wherefore, in a rapture of joy, he took him out of their arms into his own, embracing him with all affection and respect imaginable: though, some think he was a priest, and it being his office to present the firstborn to the Lord, he took him in his arms, and did it; but the former account seems more agreeable:
and blessed God; praised him, and gave glory to him, for his great goodness, in sending the promised Messiah, and long wished for Saviour; for his grace and favour, in indulging him with a sight of him; and for his truth and faithfulness in making good his promise to him:
and said; as follows.

took him up in his arms--immediately recognizing in the child, with unhesitating certainty, the promised Messiah, without needing Mary to inform him of what had happened to her. [OLSHAUSEN]. The remarkable act of taking the babe in his arms must not be overlooked. It was as if he said, "This is all my salvation and all my desire" (2-Samuel 23:5).

And said. The utterances of Elizabeth, Mary and Simeon are consecutive. Each begins where the other ends. Mary sings her own born Messiah; Zacharias celebrates the triumph of Israel, and Simeon announces the hopes of the Gentiles. But, besides this holding forth the Messiah as a Savior for Gentile as well as Jew, what is remarkable is, that he announces in Jesus a suffering Messiah as well as a glorious.--Whedon.