29 As that, “Take no thought for the morrow,” and, “Take therefore no thought what you shall eat, or what you shall drink, or what you shall put on.” Now when we see that the Lord Himself had a bag in which was put what was given, that it might be kept for necessary uses as the time should require; and that the Apostles themselves made much provision for the indigence of the brethren, not only for the morrow, but even for the more protracted time of impending dearth, as we read in the Acts of the Apostles; it is sufficiently clear that these precepts are so to be understood, that we are to do nothing of our work as matter of necessity, through love of obtaining temporal things, or fear of want.
Source: On Lying (New Advent)