Step six has to do with one of the guarantees of your salvation. When you are saved, the Bible teaches that you are sealed by the Spirit of God.

Ephesians 1:13In 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,
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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,

2 Corinthians 1:21-22
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Now he which stablisheth us with you in Christ, and hath anointed us, is God; Who hath also sealed us, and given the earnest of the Spirit in our hearts.

These verses teach that you are sealed with the Holy Ghost by the Father at the time of salvation. The Holy Spirit is not your sealer; He is your seal. A seal is something that fastens securely and which must be broken in order to be opened. Your salvation is secured by the Spirit of God. And not only are you presently sealed, but you are sealed unto the day of redemption.

Ephesians 4:30And grieve not the holy Spirit of God, whereby ye are sealed unto the day of redemption.
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And grieve not the holy Spirit of God, whereby ye are sealed unto the day of redemption.

The seal of the Spirit is guaranteed good unto the day of redemption, that is, the day when Christ takes us up to be with Him.

This means that you cannot become lost by breaking your promise to God. Since your security is based on the seal of the Spirit, no promise or commitment broken by you can void your salvation. The only way to lose your salvation is to break the Father’s seal of the Spirit. That is step six.