Charles H. Spurgeon on Psalms 145:16

Thou openest thine hand, and satisfiest the desire of every living thing. You alone provide, O Jehovah! Thou doest it liberally, with open hand; thou doest it easily, as if it were only to open thine hand; thou doest this at once as promptly as if all supplies were ready to hand. Living things have needs, and these create desires; the living God has suitable supplies at hand, and these he gives till inward satisfaction is produced, and the creature sighs no longer. In spiritual things, when God has raised a desire, he always gratifies it; hence the longing is prophetic of the blessing. In no case is the desire of the living thing excited to produce distress, but in order that it may seek and find satisfaction. These verses refer to natural providence; but they may equally well apply to the stores of grace, since the same God is king in both spheres. If we will but wait upon the Lord for pardon, renewing, or whatever else we need, we shall not wait in vain. The hand of grace is never closed while the sinner lives. In these verses we behold our God in the realm of his free grace dealing well with his believing people.