For I am sure that neither death, nor life, nor angels, nor principalities, nor things present, nor things to come, nor powers, nor height, nor depth, nor anything else in all creation, will be able to separate us from the love of God in Christ Jesus our Lord. But not a hair of your head will perish. Like Jesus, he says, first of all, that the love of Christ for us does not eliminate our suffering. On the contrary our very attachment to Christ will bring suffering. In other words, Christ's love for us, referred to in verse 35, does not remove us from these sufferings.
Obedience is risk.
And it is right to risk for the cause of God. There is no guarantee that Christians will be spared when there are food shortages. When Jesus says that we should not be anxious what we shall eat or drink because our Father knows what we need, he doesn't mean that Christians will never be hungry or starve. He means that there will always be enough food so that we can do his will and glorify his name. And if famine strikes it will not cut us off from the love of God.