See my two recent posts they both have blue ink.
God told kings that they should be generous with what god had given them, and that they should be merciful with those that are less fortunate.
Our president isn't a king. The government's treasury doesn't belong to the President, it does to a king. It isn't generous to give away other people's money.
Whoever is president obviously makes a good deal of money and has resources available to them within their authority, and they should show generosity with those.
However, the Constitution, which the President swears on the Bible to uphold does not grant the President the authority to give away the people's money generously. Nor does it grant Congress that authority. The role of the federal government is explicitly spelled out, and all other areas of authority are left to the states or the people.
Will God punish the United States if it's people are greedy and turn their backs on the needs of others? Quite possibly. We all have a responsibly to wisely use what God has given us.
The President not having the authority to use the treasury in that fashion does not break faith with God. It means that we the people have chosen not to give that authority to our government, therefore the authority and the responsibility remains with us.