This is a very common theme that leads to wisdom. So follow the thread from Solomon to Jesus to Paul to James to Peter.
In addition to King Solomon, Jesus challenged us to “Give your entire attention to what God is doing right now, and don’t get worked up about what may or may not happen tomorrow. God will help you deal with whatever hard things come up when the time comes.” Jesus taught us to pray for “our daily bread”.
Paul (2 Corinthians 4:16) shows us that “The things we see now are here today, gone tomorrow. But the things we can’t see now will last forever.”
James (4:15) said the same thing; “You don’t know the first thing about tomorrow. You’re nothing but a wisp of fog, catching a brief bit of sun before disappearing. Instead, make it a habit to say, “If the Master wills it and we’re still alive, we’ll do this or that.”
Peter challenges us “Since everything here today might well be gone tomorrow, do you see how essential it is to live a holy life? Daily expect the Day of God, eager for its arrival.”
So, this is important to God.
God is God. Jesus is in control. My planning horizon is pretty much limited to right now and today.
The only thing certain about tomorrow is that God will still be God and Jesus will still be in control of God’s country (aka Kingdom). The only ones who know anything about tomorrow are God and Jesus.
“Don’t brashly announce what you’re going to do tomorrow; you don’t know the first thing about tomorrow.” ~King Solomon
Source: Proverbs 27:1