A fellow that is totally not familiar with who God is and then the relationship God has with Jesus Christ would have thought Paul was talking about two different people because of the conjunctive function of the word “and” that Paul used in Ephesians 1:3. But that word has more than that function in Greek text unlike English just as we have seen it in this part of scripture. It is simple to understand this because the concepts that are involved in this case are common knowledge in Christianity. But this same thing happened with some other parts of the bible which has led to some churches creating some doctrines from their misunderstanding of this Greek style of writing and expression. A popular example would be John 3:5, where Jesus said except a man be born of water and of the Spirit, he cannot enter into the kingdom of God. Some people have said if a man believes in Christ but then is not baptized in water that he cannot enter in to the kingdom of God. But then the question is “what about the thief on the cross?” for although he was not baptized in water but when he believed in the son of God, Jesus told him “today I tell you, you will meet me in paradise”. He actually got the best assurance of all. There is no point creating mysteries where there is none, water and the spirit have been used so many times in the bible to mean the same thing (John 7:37-39) and so in that case Christ must have used the word “and” not as conjunctive but just as the way Paul used it in Ephesians 1:3. So a better way to translate our text would be God that is (or who is also) the father of our lord Jesus Christ. And for John 3:5, a better translation would be except a man be born of water, that is (or which is), the Spirit, he cannot enter into the kingdom of God. He was simply saying except a man be born of the Spirit, he cannot enter the kingdom of God and that makes perfect bible sense. His emphasis was never on water, water was just used as a symbol seeing that he was talking to a carnal fellow but at the point he introduced Spirit, you would notice he stopped talking about water.