Truly, God will supply all our needs according to the riches of his glory in Christ Jesus (Phil. 4:19)
Sometimes I lack money but out of nowhere, I have it.. It is because I always gave my tithes and offering to the Lord.. I gave more than enough, so he also return to me hundred times in return. That's God. He is true to his promises(Malachi 3:10). He is the God of more than enough :D