Ezekiel 6:10
And they shall know that I am the Lord, and that I have not said in vain that I would do this evil unto them.
Cross-reference
Ezekiel 6:7 contains the same 'you will know that I am the Lord' declaration — the recognition formula that 6:10 repeats and expands on.
Ezekiel 14:23 states the same point — God did nothing without cause — directly echoing 6:10's claim that God's threatenings were not in vain.
Ezekiel 5:13 uses the same formula 'they shall know I am the LORD' after judgment, directly reinforcing the certainty of God's word.
Ezekiel 12:25 declares God will speak and perform his word, emphasizing that his judgment is not delayed or empty.
Ezekiel 17:21 again uses 'then you shall know I am the LORD' after scattering survivors, tying judgment to recognition.
Jeremiah 5:12 records people saying 'He will do nothing' — directly contrasting with Ezekiel 6:10's declaration that God's threatenings were not in vain.
Jeremiah 44:28 echoes that survivors will know whose word stands, reinforcing that God's word of judgment is not in vain.
Daniel 9:12 confirms that God fulfilled his words by bringing calamity, mirroring the certainty of judgment in Ezekiel.
Zechariah 1:6 states God's words overtook the fathers, showing that his spoken judgment is sure to happen.