New Revised Standard Version
Then the sign of the Son of Man will appear in heaven, and then all the tribes of the earth will mourn, and they will see ‘the Son of Man coming on the clouds of heaven’ with power and great glory.

Contemporary English Version
Then a sign will appear in the sky. And there will be the Son of Man. All nations on earth will weep when they see the Son of Man coming on the clouds of heaven with power and great glory.

New American Bible
And then the sign of the Son of Man will appear in heaven, and all the tribes of the earth will mourn, and they will see the Son of Man coming upon the clouds of heaven with power and great glory.

Douay-Rheims Bible
And then shall appear the sign of the Son of man in heaven. And then shall all tribes of the earth mourn: and they shall see the Son of man coming in the clouds of heaven with much power and majesty.

And then shall appear the sign of the Son of man in heaven. And then shall all tribes of the earth mourn: and they shall see the Son of man coming in the clouds of heaven with much power and majesty.

the sign.

Matthew 24:3 And when he was sitting on mount Olivet, the disciples came to him privately, saying: Tell us when shall these things be? And what shall be the sign of thy coming and of the consummation of the world?

Daniel 7:13 I beheld, therefore, in the vision of the night, and lo, one like the Son of man came with the clouds of heaven, and he came even to the ancient of days: and they presented him before him.

Mark 13:4 Tell us, when shall these things be and what shall be the sign when all these things shall begin to be fulfilled?

Revelation 1:7 Behold, he cometh with the clouds, and every eye shall see him: and they also that pierced him. And all the tribes of the earth shall bewail themselves because of him. Even so. Amen.

and then shall all.

Zechariah 12:10 And I will pour out upon the house of David, and upon the inhabitants of Jerusalem, the spirit of grace, and of prayers: and they shall look upon me, whom they have pierced: and they shall mourn for him as one mourneth for an only son, and they shall grieve over him, as the manner is to grieve for the death of the firstborn.

Revelation 1:7 Behold, he cometh with the clouds, and every eye shall see him: and they also that pierced him. And all the tribes of the earth shall bewail themselves because of him. Even so. Amen.

see.

Matthew 16:27,28 For the Son of man shall come in the glory of his Father with his angels: and then will he render to every man according to his works. . . .

Matthew 26:64 Jesus saith to him: Thou hast said it. Nevertheless I say to you, hereafter you shall see the Son of man sitting on the right hand of the power of God and coming in the clouds of heaven.

Mark 13:26 And then shall they see the Son of man coming in the clouds, with great power and glory.

Mark 14:62-64 And Jesus said to him: I am. And you shall see the Son of man sitting on the right hand of the power of God and coming with the clouds of heaven. . . .

Luke 21:27 And then they shall see the Son of man coming in a cloud, with great power and majesty.

Luke 22:69 But hereafter the Son of man shall be sitting on the right hand of the power of God.

Acts 1:11 Who also said: Ye men of Galilee, why stand you looking up to heaven? This Jesus who is taken up from you into heaven, shall so come as you have seen him going into heaven.

2 Thessalonians 1:7 And to you who are troubled, rest with us, when the Lord Jesus shall be revealed from heaven with the angels of his power: