Let's start with 1 Chronicles 29:14 - David here is referring to the generosity of his people when donating to the temple that Solomon will build.
Part of that passage reads like this:
"But who am I, and who are my people, that we should be able to give as generously as this? Everything comes from you, and we have given you only what comes from your hand."
We understand in this passage, that everything we have is not our own but a gift from God to use as he directs.
In the first chapter of Nehemiah, we find Nehemiah greatly distressed at the condition of Jerusalem. The chapter closes with him praying and fasting earnestly to the Lord. With God's favor, Nehemiah boldly asks King Artaxerxes (a non-believer and the major world leader of his day) for a significant material donation and permission to do the work restoration work God put onto his heart. Nehemiah was a support raiser for a God-appointed project, even from a non-believing king.
In Luke 8:1-2 we are introduced to some of Jesus's disciples. The passage lists great women of faith. Here we learn how Jesus' own ministry was funded. Jesus was supported by precious gifts from these faithful women and "many others."
God's miraculous provision for the needs of others is often by us responding in obedience to God and giving to his mission at home and around the world.