A young man asked the astronomer Galileo Galilei, "How old are you?" And the scientist answered, after thinking about it for a few seconds: "I am 16 years old"; because 60 years of my life have passed and there are 16 years left to live.

Although he was not exact in his "prognosis", his answer should lead us to pay serious and responsible attention to our age; we do not "have" what we have already passed through the earth, but what God wants us to remain on it.

How long have you lived? That would then be the appropriate question.

Psalms 103:15-17 NKJV

15 As for man, his days are like grass;
As a flower of the field, so he flourishes.
16 For the wind passes over it, and it is [a]gone,
And its place remembers it no more.
17 But the mercy of the Lord is from everlasting to everlasting
On those who fear Him,
And His righteousness to children’s children,

James 4:14 NKJV

14 whereas you do not know what will happen tomorrow. For what is your life? It is even a vapor that appears for a little time and then vanishes away.

Psalm 90:9-10 NKJV

9 For all our days have passed away in Your wrath;
We finish our years like a sigh.
10 The days of our lives are seventy years;
And if by reason of strength they are eighty years,
Yet their boast is only labor and sorrow;
For it is soon cut off, and we fly away.