Psalm 19:1 (ESV)

The heavens declare the glory of God, and the sky above proclaims his handiwork.

Matthew 7:13 (ESV)

Enter by the narrow gate.  For the gate is wide and the way is easy that leads to destruction, and those who enter by it are many.  For the gate is narrow and the way is hard that leads to life, and those who find it are few.