Seal of guarantee, who guarantees what is to come and who guarantees our salvation is through the Devine providence and person of the Holy Spirit, who signs off on our salvation as mission accomplished.
We are coming to the fullness of the knowledge of the Father and the Son and in the fullness of the Son's personage by the miraculous works of the Holy Spirit, who arbitrates and sees through the salvation plan of God in us as his Living Stones, that is in procuring the Living Stones and in building and in also finishing (completing) the Temple of God.
This is what is written -
Zechariah 4:6-9
6So he said to me, “This is the word of the Lord to Zerubbabel: ‘
Not by might nor by power, but by my Holy Spirit,’ says the Lord Almighty.
7“What are you, mighty mountain (Body of Christ)? Before Zerubbabel (Symbol of God) you will become level ground. Then he will bring out the cornerstone (Jesus Christ) to shouts of Grace, Grace and Grace be onto Him (by Grace ar we saved through the Spirit of Grace (Hebrews 10:29)”
8Then the word of the Lord came to me:
9“
The hands of Zerubbabel have laid the foundation of this temple; his hands will also complete it. Then you will know that the Lord Almighty has sent me to you.
The Spirit of Grace commission is see to it that all those who are to be written in the a Book of Life are born and justified in Christ and are sanctified by the Holy Spirit, who signs off on their salvation onto redemption as the Advocate on their behalf.