Consider the lilies, how they grow: they neither toil nor spin; but I tell you, not even Solomon in all his glory clothed himself like one of these. But if God so clothes the grass in the field, which is alive today and tomorrow is thrown into the furnace, how much more will He clothe you? You men of little faith! And do not seek what you will eat and what you will drink, and do not keep worrying. For all these things the nations of the world eagerly seek; but your Father knows that you need these things. But seek His kingdom, and these things will be added to you.
Luke 12:27-31 (NASB)
Believers are called to be dedicated in the advancement of His kingdom. Trust the Father who knows what we need and stop worrying, He will provide.