Matthew 9:29 says, Then he touched their eyes and said, “According to your faith will it be done to you”;

Notice, it says according to our faith, not according to God.
There is an old religious mindset that says whatever happens in our life is the will of God. Whatever God allows us to have, is the will of God. That’s not true. The will of God is in the Word of God and the Word of God promises us an abundance of things including our personal desires.

God desires what we desire. If He didn’t, He would not have said it in Psalms 37:4 “I (God) will give you the desires of your heart.” If we want a three bedroom house, God desires a three bedroom house for us. If we want a Mercedes-Benz, God desires a Mercedes-Benz for us. Anything that pertains to life and godliness, God is willing to provide those things to enhance the quality of our life.

Once again, it’s according to our faith. Everyone’s faith is going to be different. Someone may desire and have the faith for great wealth and great possessions while another may have the desire and faith to just have enough money to pay their bills. It’s not wrong or materialistic for the first person to desire a surplus of things because it’s according to their (individualistic) faith. We shouldn’t look down at the person for wanting great possessions. Personally, I believe if God said it, I should expect it.

Whatever you desire from God will be possessed by your faith.