69 These things are all the events of vv. 8–27. Disciples represent the righteous here. The events surrounding the fall of the nation are a down payment on a fuller judgment to come on all humanity. The presence of one guarantees the other.
70 With Jesus’ return comes the manifestation of judgment and final salvation (redemption).

In other versions

Now when these things begin to take place, straighten up and raise your heads, because your redemption is drawing near.”

When these things begin to take place, stand up and lift up your heads, because your redemption is drawing near.”

But when these things begin to take place, stand up and lift your heads, because your redemption is near.”

So when all these things begin to happen, stand and look up, for your salvation is near!”

But when these things begin to happen, stand up straight and raise your heads, because your redemption is drawing near!”

And when these things begin to come to pass, then look up, and lift up your heads; for your redemption draweth nigh.

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