The Lord is my shepherd, I shall not be in want. Under the similitude of a shepherd, he commends the care which God, in his providence, had exercised towards him. his language implies that God had no less care of him than a shepherd has of the sheep who are committed to his charge. God, in the Scripture, frequently takes to himself the name, and puts on the character of a shepherd, and this is no mean token of his tender love towards us. As this is a lowly and homely manner of speaking, he who does not disdain to stoop so low for our sake, must bear a singularly strong affection towards us. It is therefore wonderful, that when he invites us to himself with such gentleness and familiarity, we are not drawn or allured to him, that we may rest in safety and peace under his guardianship.
But it should be observed, that God is a shepherd only to those, who, touched with a sense of their own weakness and poverty, feel their need of his protection, and who willingly abide in his sheepfold, and surrender themselves to be governed by him. david, who excelled both in power and riches, nevertheless frnakly confessed himself to be a poor sheep, that he might have God for his shepherd. Who is there, then, amongst us, who would exempt himself from this necessity, seeing our own weakness sufficiently shows that we are more than miserable if we do not live under the protection of this shepherd? We ought to bear in mind, that our happiness consists in this, that his hand is stretched forth to govern us, that we live under his shadow, and that his providence keeps watch and ward over our welfare. Although, therefore, we havce abundance of all temporal good things, yet let us be assured that we cannot be truly happy unless God vouchsafe to reckon us among the number of his flock. Besides, we then only attribute to God the office of a Shepherd with due and rightful honour, when we are persuaded that his providence alone is sufficient to supply all our necessities. As those who enjoy the greatest abundance of outward good things are empty and famished if God is not their shepherd; so it is beyond all doubt that those whom he has taken under his charge shall not want a full abundance of all good things. David, therefore, declares that he is not afraid of wanting any thing, because God is his Shepherd.
Heart Aflame: Daily Readings from Calvin on the Psalms by John Calvin