God uses symbolism in scripture and in the vastness of the entire earth man is as grass that appears for a time then is gone. It is the soul that is reborn of incorruptible seed of the word of God that will endure forever. (1 Peter 1:22-25).  Seeing ye have purified your souls in obeying the truth through the Spirit unto unfeigned love of the brethren, see that ye love one another with a pure heart fervently: Being born again, not of corruptible seed, but of incorruptible, by the word of God, which liveth and abideth for ever. For all flesh is as grass, and all the glory of man as the flower of grass. The grass withereth, and the flower thereof falleth away: But the word of the Lord endureth for ever. And this is the word which by the gospel is preached unto you.

We are not suppose to envy those who choose evil and wicked ways, for they will be as grass cut down and they do not live out half their days upon this earth. (Psalm 37:1,2)  Fret not thyself because of evildoers, neither be thou envious against the workers of iniquity. For they shall soon be cut down like the grass, and wither as the green herb……. (Psalm 55:22,23)……. (Proverbs 24:19,20).

God’s timeline does not compare to ours at all. Our life is miniscule and as a vapor in His sight. A thousand years to God is as a memory or a dream (a watch in the night). As grass which flourishes and swiftly is gone by evening. (Psalm 90:4-10). For a thousand years in thy sight are but as yesterday when it is past, and as a watch in the night. Thou carriest them away as with a flood; they are as a sleep: in the morning they are like grass which groweth up. In the morning it flourisheth, and groweth up; in the evening it is cut down, and withereth. For we are consumed by thine anger, and by thy wrath are we troubled. Thou hast set our iniquities before thee, our secret sins in the light of thy countenance. For all our days are passed away in thy wrath: we spend our years as a tale that is told. The days of our years are threescore years and ten; and if by reason of strength they be fourscore years, yet is their strength labour and sorrow; for it is soon cut off, and we fly away.

In revelation when the fifth angel sounds we are told there will be the power of locusts over the land given the power to destroy, it is then the grass (People of the Lord) which have the seal of God in their foreheads (His Knowledge) will not be hurt nor killed. The name of the king over this evil locust army at this time is none other than satan whose name in the Hebrew tongue is Abaddon, and in the Greek A-pol’-ly-on!  (Revelation 9:1-11).  And the fifth angel sounded, and I saw a star fall from heaven unto the earth: and to him was given the key of the bottomless pit. And he opened the bottomless pit; and there arose a smoke out of the pit, as the smoke of a great furnace; and the sun and the air were darkened by reason of the smoke of the pit. And there came out of the smoke locusts upon the earth: and unto them was given power, as the scorpions of the earth have power. And it was commanded them that they should not hurt the grass of the earth, neither any green thing, neither any tree; but only those men which have not the seal of God in their foreheads. And to them it was given that they should not kill them, but that they should be tormented five months: and their torment was as the torment of a scorpion, when he striketh a man. And in those days shall men seek death, and shall not find it; and shall desire to die, and death shall flee from them. And the shapes of the locusts were like unto horses prepared unto battle; and on their heads were as it were crowns like gold, and their faces were as the faces of men. And they had hair as the hair of women, and their teeth were as the teeth of lions.And they had breastplates, as it were breastplates of iron; and the sound of their wings was as the sound of chariots of many horses running to battle. And they had tails like unto scorpions, and there were stings in their tails: and their power was to hurt men five months. And they had a king over them, which is the angel of the bottomless pit, whose name in the Hebrew tongue is Abaddon, but in the Greek tongue hath his name Apollyon.