ALL BELIEVERS ARE SEALED UNTO THE DAY OF REDEMPTION
"And grieve not the holy Spirit of God, whereby ye are SEALED unto the day of REDEMPTION." (Eph. 4:30)
(The Bible did NOT say, "sealed unto the day of damnation; but REDEMPTION." Did you note the difference???)
Seal in scripture denotes OWNERSHIP. Therefore we are God's possession. Can God lose us? The Holy Spirit has promised to keep us. Will God break His promise? NO!! (Eph. 4:30).
Earnest means the Holy Spirit's promise with an obligation to fulfill. He will keep His promise.
"In whom (Jesus Christ) also we have obtained an inheritance, being PREDESTINATED according to the purpose of him who worketh all things after the counsel of HIS OWN WILL: That we should be to the praise of his glory who first trusted in Christ: 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, which is the EARNEST of our inheritance UNTIL THE REDEMPTION OF THE PURCHASED POSSESSION, unto the praise of his glory" (Eph. 1:11 -14).
ALL BELIEVERS ARE PRESERVED UNTO THE HEAVENLY KINGDOM
"And the Lord shall deliver me from every evil work, and WILL PRESERVE ME unto his heavenly kingdom..." (II Tim. 4:18).
ALL BELIEVERS SHALL NEVER THIRST AGAIN
"Jesus answered and said...But whosoever drinketh of the water that I shall give him SHALL NEVER THIRST" (John 4:13, 14). You could not say this about a man that could lose his salvation. He could thirst again.
ALL BELIEVERS HAVE EVERLASTING LIFE
Everlasting means lasting or enduring forever; eternal; existing or continuing without end; immortal. (Webster's American Dictionary)3
"Verily, verily, I say unto you, He that heareth my word, and believeth on him that sent me, HATH EVERLASTING LIFE, and SHALL NOT COME INTO CONDEMNATION. . ." (John 5:24). The Lord did not say that he that believes has only "temporary" life.
"For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him SHOULD NOT PERISH, but HAVE EVERLASTING LIFE" (John 3:16). It would not be everlasting if you could lose it.