Psalm 90 is a great one to read in the month of January.

Read it. Meditate on it. And consider how time is running out.

… from everlasting to everlasting you are God.

You return man to dust.

So teach us to number our days that we may get a heart of wisdom.

 

John Calvin’s comment on Psalm 90 –

We have here laid down a simple definition of our life, that it is, as it were, a short revolution in which we quickly complete our circle, the last point of which is the termination of our earthly course.

Although we are convinced from experience that men, when they have completed their circle, are forthwith taken out of the world, yet the knowledge of this frailty fails in making a deep impression upon our hearts, because we do not lift our eyes above the world. Whence proceeds the great stupidity of men, who, bound fast to the present state of existence, proceed in the affairs of life as if they were to live two thousand years, but because they do not elevate their conceptions above visible objects?

Each man, when he compares himself with others, flatters himself that he will live to a great age. In short, men are so dull as to think that thirty years, or even a smaller number, are, as it were, an eternity; nor are they impressed with the brevity of their life so long as this world keeps possession of their thoughts.

This is the reason why Moses awakens us by elevating our minds to the eternity of God, without the consideration of which we perceive not how speedily our life vanishes away. The imagination that we shall have a long life, resembles a profound sleep in which we are all benumbed, until meditation upon the heavenly life swallow up this foolish fancy respecting the length of our continuance upon earth.