WHY, WE ARE TO SIGH AND CRY OUT? To “sigh” in the bible is to have deep inward despair, distress, pain and anguish concerning the defiling and abomination of YAHUAH’S temple and of His creation.
The abomination of YAHUAH’S creation include genetic mutation (GMO), vaccines, abortions, and all other abominations of Babylon system. We are to be deeply grieved in our hearts at the sight of abominations and defiling of YAHUAH’S creation. 1 Corinthians 6: “Do you not know that your body is a temple of the Holy Spirit?”
When Reading Ezekiel 8, it is the shown in Ezekiel 9:4-6, how passionate YAHUAH is for those that “Sigh and Cry out” concerning the abomination and defiling of the things belonging to YAHUAH. Those that “Sigh and Cry out” are given a Tav/Mark upon the foreheads and are safe form YAHUAH’S Judgement.

Ezekiel 9:4-6 "And YAHUAH said unto him, Go through the midst of the city, through the midst of Jerusalem, and set a Tav/Mark upon the foreheads of the men that sigh and that cry for all the abominations that be done in the midst thereof. And to the others he said in mine hearing, Go ye after him through the city, and smite: let not your eye spare, neither have ye pity: Slay utterly old and young, both maids, and little children, and women: but come not near any man upon whom is the Tav/Mark; and begin at my sanctuary. Then they began at the ancient men which were before the house"

We also see that Yahushua, sighed deeply. Yahushua was deeply grieved at the Pharisees and their wickedness
Mark 8:11-12 "The Pharisees came and began to question Yahushua. To test him, they asked him for a sign from heaven. He sighed deeply and said, “Why does this generation ask for a sign? Truly I tell you, no sign will be given to this generation."

Also, in Genesis 6: 5-6, YAHUAH was grieved and sighed at the wickedness of mankind.
Genesis 6: 5-6 "And YAHUAH saw that the wickedness of man was great in the earth, and that every imagination of the thoughts of his heart was only evil continually. And it repented (sighed, to breath heavily) YAHUAH that he had made man on the earth, and it grieved him at his heart."

Conclusion When we sigh and cry out for judgement and righteousness at the sight of this wicked world’s system abomination and the defiling of YAHUAH’S creation, YAHUAH hears our cries and sees out hearts that we are deeply grieved at people willingly receiving mutation vaccines that defile their temple, defiling of the foods we eat, abortion, immorality, ect. YAHUAH then sends His Malakim to record and set a Tav/Mark upon our foreheads.