Heidelberg Catechism on Give us this day
Question 125. What is the fourth petition?
Give us this day our daily bread. That is: Be pleased to provide for all our bodily need; that we may thereby know that Thou art the only fountain of all good, and that without Thy blessing, neither our care and labor, nor Thy gifts can profit us; and may therefore withdraw our trust from all creatures, and place it alone in Thee.
Ps. 145:15, 16. The eyes of all wait upon Thee; and Thou givest them their meat in due season. Thou openest Thine hand, and satisfiest the desire of every living thing.
Ps. 127:1, 2. Except the Lord build the house, they labor in vain that build it: except the Lord keep the city, the watchman waketh but in vain. It is vain for you to rise up early, to sit up late, to eat the bread of sorrows: for so He giveth His beloved sleep.
Jer. 17:5, 7. Thus saith the Lord: Cursed is the man that trusteth in man, and maketh flesh his arm, and whose heart departeth from the Lord. Blessed is the man that trusteth in the Lord, and whose hope is in the Lord.
Heidelberg Catechism, Heidelberg Catechism, Revised Edition. (Cleveland, OH: Central Publishing House, 1907), 131–132.