Which of these interpretations of Malachi 3:1 can be eliminated?

The authorised KJV translates Malachi 3:1 as follows: "Behold, I will send my messenger, and he shall prepare the way before me: and the Lord, whom ye seek, shall suddenly come to his temple, even the messenger of the covenant, whom ye delight in: behold, he shall come, saith the LORD of hosts." Does the Hebrew grammar of the verse eliminate any of the following interpretations? 1) The verse is in response to the last part of Malachi 2:17 "Where is the God of judgement?". There will be a messenger who will prepare the way and then God (who the people are wondering where he is in Malachi 2:17, and who the people delight in) who is also the messenger of the covenant (the covenant given to Moses), will suddenly come to his temple. "Behold he shall come" refers to the messenger who will prepare the way, otherwise it would be behold I shall come. 2) The verse is in response to the last part of Malachi 2:17 "Where is the God of judgement?". There will be a messenger who will prepare the way and then God (who the people are wondering where he is in Malachi 2:17, and who the people delight in) who will also be the messenger of a new covenant, will suddenly come to his temple. "Behold he shall come" refers to the messenger who will prepare the way, otherwise it would be behold I shall come. 3) The verse is in response to the last part of Malachi 2:17 "Where is the God of judgement?". There will be a messenger who will prepare the way, and then God (who the people are wondering where he is in Malachi 2:17) will suddenly come to his temple, as will the messenger who will prepare the way who is also the messenger of a new covenant, and is a messenger the people delight in (presumably the Messiah). Behold he shall come refers to the Messiah messenger, otherwise it would be behold I shall come. 4) The verse relates to the last part of Malachi 2:17 "Where is the God of judgement?" but is not a response to it. There will be a messenger who will prepare the way, and then another messenger will come to the God of judgement's temple and this other person will be the messenger of a new covenant, and will be a Lord that the people seek and delight in (presumably the Messiah). "Behold he shall come" refers to the Messiah messenger. 5) The verse relates to the last part of Malachi 2:17 "Where is the God of judgement?" but is not a response to it. There will be a messenger who will prepare the way, and will also be a messenger of a new covenant, and who will also be a Lord that the people seek and delight in (presumably the Messiah), and that this messenger will come to the God of judgement's temple.