Mark 1:33

1:33 The whole town gathered by the door.

Mark 13:29

13:29 So also you, when you see these things happening, know ¹  that he is near, right at the door.

[13:29]  ¹ tn The verb γινώσκετε (ginwskete, “know”) can be parsed as either present indicative or present imperative. In this context the imperative fits better, since the movement is from analogy (trees and seasons) to the future (the signs of the coming of the kingdom) and since the emphasis is on preparation for this event.