You slander Peter by falsely making him call Paul a liar.
Rom 8:16
2 Cor 1:22
2 Cor 5:5
Eph 1:14
Eph 4:30
Rom 8:16 The Spirit itself beareth witness with our spirit, that we are the children of God:
That is not the sealing. That is receiving.
2Co 1:21 Now he which stablisheth us with you in Christ, and hath anointed us, is God;
2Co 1:22 Who hath also sealed us, and given the earnest of the Spirit in our hearts.
That speaks of Paul and company as far as the sealing goes.
2Co 5:5 Now he that hath wrought us for the selfsame thing is God, who also hath given unto us the earnest of the Spirit.
Us, is not you.
Eph 1:13 In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise,
Eph 1:14 Which is the earnest of our inheritance until the redemption of the purchased possession, unto the praise of his glory.
The verses says they were sealed AFTER they believed.
Was Simon sealed when he believed?
Act 8:9 But there was a certain man, called Simon, which beforetime in the same city used sorcery, and bewitched the people of Samaria, giving out that himself was some great one:
Act 8:10 To whom they all gave heed, from the least to the greatest, saying, This man is the great power of God.
Act 8:11 And to him they had regard, because that of long time he had bewitched them with sorceries.
Act 8:12 But when they believed Philip preaching the things concerning the kingdom of God, and the name of Jesus Christ, they were baptized, both men and women.
Act 8:13 Then Simon himself believed also: and when he was baptized, he continued with Philip, and wondered, beholding the miracles and signs which were done.
Act 8:18 And when Simon saw that through laying on of the apostles' hands the Holy Ghost was given, he offered them money,
Act 8:19 Saying, Give me also this power, that on whomsoever I lay hands, he may receive the Holy Ghost.
Act 8:20 But Peter said unto him, Thy money perish with thee, because thou hast thought that the gift of God may be purchased with money.
Act 8:21 Thou hast neither part nor lot in this matter: for thy heart is not right in the sight of God.
Act 8:22 Repent therefore of this thy wickedness, and pray God, if perhaps the thought of thine heart may be forgiven thee.
Act 8:23
For I perceive that thou art in the gall of bitterness, and in the bond of iniquity.
Eph 4:30 And grieve not the holy Spirit of God, whereby ye are sealed unto the day of redemption.
Spoken to those who are sealed.
There is nothing definitive in all of your verses to say one is sealed at the believing of the gospel.
There are many verses which show believing occurs before being sealed where sealing is sometimes a very long time after first believing.
One man I know was not sealed until after some 40 years of believing.
Only two of those who came out of Egypt were sealed after believing.
That does not mean all the unsealed are headed to hell, though some are, only that the last judgment will decide their future.
Rev 9:4 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.
Eze 9:4 And the LORD said unto him, Go through the midst of the city, through the midst of Jerusalem, and set a mark upon the foreheads of the men that sigh and that cry for all the abominations that be done in the midst thereof.
Eze 9:5 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:
Eze 9:6 Slay utterly old and young, both maids, and little children, and women: but come not near any man upon whom is the mark; and begin at my sanctuary. Then they began at the ancient men which were before the house.
Eze 9:7 And he said unto them, Defile the house, and fill the courts with the slain: go ye forth. And they went forth, and slew in the city.
Rev 7:3 Saying, Hurt not the earth, neither the sea, nor the trees, till we have sealed the servants of our God in their foreheads.
They were servants before they were sealed.
complies with--
Mat 24:42 Watch therefore: for ye know not what hour your Lord doth come.
Mat 24:43 But know this, that if the goodman of the house had known in what watch the thief would come, he would have watched, and would not have suffered his house to be broken up.
Mat 24:44 Therefore be ye also ready: for in such an hour as ye think not the Son of man cometh.
Mat 24:45 Who then is a faithful and wise servant, whom his lord hath made ruler over his household, to give them meat in due season?
Mat 24:46 Blessed is that servant, whom his lord when he cometh shall find so doing.
Mat 24:47 Verily I say unto you, That he shall make him ruler over all his goods.
Mat 24:48 But and if that evil servant shall say in his heart, My lord delayeth his coming;
Mat 24:49 And shall begin to smite his fellowservants, and to eat and drink with the drunken;
Mat 24:50 The lord of that servant shall come in a day when he looketh not for him, and in an hour that he is not aware of,
Mat 24:51 And shall cut him asunder, and appoint him his portion with the hypocrites: there shall be weeping and gnashing of teeth.
Cherry picking verses with sealed in them, reveals little understanding of Gods word.
LA