If we think about human matters instead of God's work,

we will inevitably stumble.

Peter said to Jesus, "Even if all the others fall away, I will never abandon You."  Jesus replied to him, "Truly, I tell you, this very night, before the rooster crows, you will deny Me three times."  But Peter insisted, "Even if I have to die with You, I will never disown You."  And all the other disciples said the same (Matthew 26:33-35, Korean Modern Bible).  When I meditate on this passage, I have a few thoughts:

(1)    The word "never" is something we should never say. Haha.

(2)    Jesus' use of the word "truly" indicates that His words will "surely" come to pass.

(3)    Even though Peter claimed, "Even if I have to die with You, I will never deny You," he actually did deny Jesus three times, just as Jesus had said.  When we focus on human matters instead of God's work, we will inevitably fall (see Matthew 16:23).