31 So likewise, when you see these things come to pass, know that the kingdom of God is at hand.
Luke 21:31 Cross References - RKJNT
Matthew 3:2
2 And saying, Repent: for the kingdom of heaven is at hand.
Matthew 16:1-4
1 The Pharisees and the Sadducees came, and testing him, asked that he would show them a sign from heaven.
2 He answered and said to them, When it is evening, you say, It will be fair weather: for the sky is red.
3 And in the morning, It will be foul weather today: for the sky is red and threatening. O you hypocrites, you can discern the face of the sky; but can you not discern the signs of the times?
4 A wicked and adulterous generation seeks after a sign; and there shall be no sign given to it, but the sign of the prophet Jonah. And he left them, and departed.
Luke 12:51-57
51 Do you suppose that I have come to give peace on earth? I tell you, No; but rather division:
52 For from henceforth there shall be five in one house, divided, three against two, and two against three.
53 They shall be divided father against son, and son against father; mother against daughter, and daughter against mother; mother-in-law against her daughter-in-law, and daughter-in-law against her mother-in-law.
54 And he also said to the people, When you see a cloud rise out of the west, immediately you say, A shower is coming; and so it does.
55 And when you see the south wind blow, you say, There will be heat; and it comes to pass.
56 You hypocrites, you can discern the face of the sky and of the earth; but how is it that you do not discern this time?
57 And why do you not even judge for yourselves what is right?
Hebrews 10:37
37 For yet a little while longer, and he who shall come will come, and will not tarry.
James 5:9
9 Do not grumble against one another, brethren, lest you be condemned: behold, the judge stands before the door.
1 Peter 4:7
7 But the end of all things is at hand: therefore be of sound mind and sober judgement for prayer.