We are God's work

Today, we read of a summary of Paul's theology in Ephesians 2. We are able to find most of the teachings of St. Paul in a very short span of verses.
Paul saw the world as evil, in contradiction with the work of the Holy Spirit. Those who led a worldly life were dead (Ephesians 2:1). They were called "the sons of disobedience τοῖς υἱοῖς τῆς ἀπειθείας" (Ephesians 2:2) and "by nature children of wrath τέκνα φύσει ὀργῆς " (Ephesians 2:3). These labels carry serious consequences. They would not occupy any place in the Kingdom of God. They would be the targets of God's wrath! God's punishments would direct against them. It sounds terrible, doesn't it? But nowadays, modern people simply ignore it. For them, God is not even a hypothesis. The consequence is deplorable. When there is no fear of God, there would not be any wisdom. When there is no wisdom, man will do the most foolish things possible.
God loves us. Paul did not explain why. I'm afraid nobody on earth would be able to answer this question. It is a mystery. Without doubt, we die. But God loves us and brings us back to life with Christ Jesus (Ephesians 2:5). Why does God love us? We don't have a clue. We only know that He sent His son Jesus to die for us on the cross. What else can we demand of God? Some non-Christians poked fun with the nativity story of Jesus. Joseph was a servant of God. Joseph was the husband of Mary. Without seeking Joseph's consent, God impregnated Mary, violating the property right of His obedient servant (Exodus 20:17). Therefore, this God should repent because He breached the very law He gave men to observe!
Well, what else can we say? The Ten Commandments regulate the interaction between men and men. They do not stipulate how God should interact with men. I doubt very much whether Exodus 20:17 can be applied in this case.
However, the fact that God tested Abraham and found him righteous (Genesis 22), probably forces God to outperform Abraham. But of course, nobody can force God to do anything, right? It is only a hypothesis.
We are living in a pitiful situation. By faith (on our part) and by grace (on God's part), we are saved. Yet immediately, St. Paul reminded us that we do not gain salvation through our own merits. It is a gift of God (Ephesians 2:8). Why was Paul afraid that we would boast? Why is faith more effective than works, as far as obtaining salvation is concerned? I have yet to read of Paul's explanation. What is wrong with charitable works? Hasn't Jesus told us that serving the needy is serving him (Matthew 25:40)? Immediately, St. Paul gave an explanation.
For we are his workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them (Ephesians 2:10).
We are God's master pieces. The purpose of our existence is still doing good works. Yet we must remember that it is God who gives us the opportunity and the power to do these good works. Without God's providence and empowerment, we are nothing and we can do nothing. That's why Paul once said,
If I must boast, I will boast of the things that show my weakness (2 Corinthians 11:30).
Paul knew very well that our stubbornness would hinder God's work. By humbly submitting ourselves to God, great things could be achieved. God has prepared these great things beforehand for us.

My dear Advocate, I am proud to be Your workmanship. Let me work well so that I would not be a disgrace to You before our brothers and sisters. Amen.