One of the principles that all of must learn as Christians is to walk by faith. In 2 Corinthians 5:7 Paul says, “We live by faith, not by sight”. Faith is the one thing God desires in us all. As it says in Hebrews 11:6 “And without faith it is impossible to please God, because anyone who comes to him must believe that he exists and that he rewards those who earnestly seek him.” Our faith proves our trust in God, and our Father in heaven desires that His children actually believe that He will provide for any and every need in our lives.
This of course includes our finances. With respect to our money, most of us are much more comfortable making decisions based upon what can be seen and reasoned. Nothing wrong with reason. God has given us a mind to use, and he expects us to be prudent and wise with it.