There is one Master alone who has the power to set us free from the slavery of sin and fear. That Master is the Lord Jesus Christ. Jesus uses the illustration of nature the birds and the flowers to show how God provides for them in the natural order of his creation. God is utterly reliable. What is bread , but the very staple of life and symbol of all that we need to live and grow.
Anxiety is neither helpful nor necessary.
It robs us of faith and confidence in God's help and it saps our energy for doing good. Jesus admonishes his followers to put away anxiety and preoccupation with material things and instead to seek first the things of God his kingdom and righteousness. Anxiety robs the heart of trust in the mercy and goodness of God and in his loving care for us. God knows our needs even before we ask and he gives generously to those who trust in him. Lord, free me from needless worries and help me to put my trust in you.