For the Son of Man is going to come in his Father's glory with his angels, and then he will reward each person according to what he has done. I tell you the truth, some who are standing here will not taste death before they see the Son of Man coming in his kingdom." (Matthew 16: 27-28)

This is one of several verses sometimes used to assert that Jesus was mistaken regarding the kingdom of heaven's timing.

This assumes that everyone listening to Jesus died without seeing the Son of Man coming in his kingdom.

Several - probably most - were still alive when Jesus died. Some encountered a resurrected Jesus.

Isn't the death and resurrection a reasonable expression of a coming - erchomai - of the kingdom? This is to arrive, arise, appear, show forth, become known, or influence.

Is it posssible that the kingdom comes when any one of us fulfills God's intention?

Above is a Russian Orthodox icon of the risen Christ.