Many Christians worry about marriage, money, people, health, terrorism, and economic conditions. God says, "The antidote to worry is me being FIRST". Of all the problems we face, you name the category, to live in perpetual defeat over it, you must ask the question, "Have I addressed God FIRST"? God says, "I want to be FIRST". "Seek Ye First the Kingdom of God". If that is missing, then you have just identified the cause of everything else that's wrong.
God says, "the reason why you are shook up and worried is 'cause I'm not FIRST, SO YOU GET TO TAKE CARE OF YOU'!
"The priority of the Kingdom" is imperative. Because if you miss what's first it doesn't matter what else you do. You've lost the foundation.
"Seek Ye First" gives you light from God, so that you know which way to go, which way to turn, which way to move, which way to act, which way to think, which way to walk, which way to talk, which way to relate. You know what to do because the light is shining. You lose that perspective, no wonder you're running into things, tripping over things, falling over things, because that which is light is now dark and you can't see.
Yes, we acknowledge Him, yes we reference Him, but that's not sufficient for Him. He wants FIRST! That includes your tithes and offerings (tithe means 10% gross income when you get paid).
This is how many Christians fall from grace by not making God first and operate by human wisdom. Once you leave the Cross to fix the problem...on your best day all you can do is patch it up! You cannot fix it. Because only the Cross deals with sin.