Jesus tells us to seek first the kingdom of God, and He will give us everything we need, saying, "DO NOT WORRY ABOUT TOMORROW; TOMORROW WILL TAKE CARE OF ITSELF."
Worry places a burden on us. Faith sets us free. Worry weighs us down. Faith lifts us up. We place our faith in doctors and pilots, banks and products; even in weathermen. How can we not place our Faith in the One who created us, the One who died for us, the One who dwells in us. Jesus didn't die for the grass, or the flowers, or the birds. He died for us, His brothers and sisters. Trust Him, and everything else will fall into place.