'Signs' in the Bible

The Lord says, "Do not start following pagan religious practices. Do not be in awe of signs that occur in the sky even though the nations hold them in awe.

I will say, 'My dear children of Israel, keep in mind the road you took when you were carried off. Mark off in your minds the landmarks. Make a mental note of telltale signs marking the way back. Return, my dear children of Israel. Return to these cities of yours.