"Woe to them that go down to Egypt for help; and stay on horses, and trust in chariots, because they are many; and in horsemen, because they are very strong; but they look not unto the Holy One of Israel, neither seek the LORD!" Isaiah 31:1
These attributes of God -- Him as our help (Ps. 33:20; 124:8), our trust (Ps. 20:7; 40:3), our strength (Ps. 46:1; 81:1) -- can be found elsewhere in the world but they are artificial. Do we seek temporal strength and help, or do we seek the Source of help and strength?
God closed two doors because He had a door wide open in Macedonia (vs. 9). If we are sincerely following God and all paths lead to closed doors, it may mean He has an open door, leading straight to a harvest ready to be reaped.
This verse is in the middle of a passage basically exhorting those who were seeking God to stay looking to Him. We often think about encouraging the faltering to seek God, but it's also needful to encourage those who are walking after God to "keep on keeping on."
Where are you in your Bible reading this week?