In Him you also, after hearing the word of truth, the gospel of your salvation, and after believing in Him, were sealed with the promised Holy Spirit, who is the guarantee of our inheritance until the redemption of the purchased possession, to the praise of His glory.

Ephesians 1:13–14

Like other parts of the Bible, this is a powerful passage. It debunks a majority of erroneous doctrines. Two that come to mind…

Regeneration before faith is impossible here. Hearing, believing, and sealed are ordered. The tenses of each verb in the Greek are all aorist. The aorist tense is best translated at perfect tenses in English. The best way to describe the tense is once and done, meaning it cannot be undone. After one hears, it cannot be undone. After one believes, it cannot be undone. Once one is sealed, it cannot be undone.

The latter idea is reinforced in the words that describe Who the Holy Spirit is. This debunks the other popular error, that one can somehow lose or forfeit salvation by free will.

“Come to Me, all you who labor and are heavily burdened, and I will give you rest. Take My yoke upon you, and learn from Me. For I am meek and lowly in heart, and you will find rest for your souls. For My yoke is easy, and My burden is light.”

Matthew 11:28–30

Jesus beckoned for all to come unto Him. He promised to give them rest. Not only is that rest from work, it is rest from persevering. It is also rest from worry because He keeps His promises and He keeps His own.

Just as Paul wrote to the Ephesians. If you’ve heard, and then you believed… You are delivered from death and judgment, being sealed by the Holy Spirit Himself. He is given as earnest money guaranteeing the fulfillment. You don’t have to guarantee the fulfillment by work, perseverance, or worry. He does.

There are now two witnesses from the Scriptures of this truth. There are more, but one particularly satisfying is from Jesus Himself as recorded by John.

Jesus said to them, “I am the bread of life. Whoever comes to Me shall never hunger, and whoever believes in Me shall never thirst. But I told you that you have seen Me, and yet do not believe. All whom the Father gives Me will come to Me, and he who comes to Me I will never cast out. For I came down from heaven, not to do My own will, but the will of Him who sent Me. This is the will of the Father who has sent Me, that of all whom He has given Me, I should lose nothing, but should raise it up at the last day. This is the will of Him who sent Me, that everyone who sees the Son and believes in Him may have eternal life, and I will raise him up on the last day.”

John 6:35–40

Everyone who sees the Son and believes in Him. It’s not enough to see or hear about Jesus. One has to make the next step, believe in Him to have eternal life. What does that mean?

Jesus explained it to the Pharisees…

Therefore I said to you that you will die in your sins. For unless you believe that I am He, you will die in your sins.”

John 8:24

Check the immediate context of that text. Jesus is making the case that He forgive sins. He is the Light. Things that Jewish folks only consider to be of the Father Himself. That is, He is God. That is exactly what He means when He says unless one believes they are still in their sins. Just like those who came to Him in John 6, they saw Him and the miracles… But they did not believe in Him as God.

See and hear of the Son. Then believe His testimony, trusting in Him as God to forgive sins. He will forgive, and give eternal life to anyone who does that.