Mark 12:27

He is not the God of the dead, but of the living. You do err much.

Mark 12:24

And Jesus responding, said to them; Therefore do you not err, not knowing the Scriptures nor the power of God?

Romans 4:17

as it has been written, That I have constituted thee the father of many nations, before God whom he believed, who quickens the dead, and calls things which are not as really existing:

Romans 14:9

For unto this Christ died, and lives, in order that He may be Lord of the dead and of the living.

Hebrews 3:10

Therefore I was provoked with this generation, and I said, They do always err in their heart: and they have not known my way,

Hebrews 11:13-16

These all died in the faith, not having received the promises, but seeing them afar off, and embracing them, and confessing that they are strangers and pilgrims on the earth.

Treasury of Scripture Knowledge

Summary

He is not the God of the dead, but the God of the living: ye therefore do greatly err.

Bible References

Is not

Romans 4:17
as it has been written, That I have constituted thee the father of many nations, before God whom he believed, who quickens the dead, and calls things which are not as really existing:
Romans 14:9
For unto this Christ died, and lives, in order that He may be Lord of the dead and of the living.
Hebrews 11:13
These all died in the faith, not having received the promises, but seeing them afar off, and embracing them, and confessing that they are strangers and pilgrims on the earth.

Ye

Mark 12:24
And Jesus responding, said to them; Therefore do you not err, not knowing the Scriptures nor the power of God?
Hebrews 3:10
Therefore I was provoked with this generation, and I said, They do always err in their heart: and they have not known my way,