You also in him hearing the word of truth, the gospel of your salvation in him also believing were marked of the promised Holy Spirit, who exists the guarantor of our inheritance to the extent redemption of his possession, to the praise of his glory (Ephesians 1: 13-14)
Do you have a mark that distinguishes you as a child of God? God marked or sealed you with the Holy Spirit when you believed. This marking is to the extent of his possession, in other words, that you are His own. We are marked until that day when there will be a redemption of his possession. As we await our salvation the redemption of our bodies. Earlier in Ephesians 1:5 we read he predestined us for adoption as his own. You were marked as his own, a child of God.
you received a Spirit of adoption in whom cries out 'Abba the Father' the Spirit himself testifing of our spirit because we exist children of God (Romans 8:15-16)
That the Spirit pours out the love of the Father in our hearts and we exist his own testifies of the intimate relationship we have, of knowing him thus crying out Abba Father. This is the distinctive difference between a head knowledge, knowing as the demons do. If the Spirit of Christ dwells in you then you exist as his own, a child of God. And it matters not to me whether that choice was according to grace or through foreknowledge of my belief, for I was predestined for adoption as his own, chosen before He created the world.
he predestined us for adoption as his own sons through Jesus Christ, according to the good pleasure of his will, (Ephesians 1:5)Christ came "to redeem those who were under the law, so that we might receive adoption as sons." (Galatians 4:5). This is an amazing truth, Israel of the flesh was held under a guardian until the appointed time. Jesus came with the authority so they and all people of all nations could become children of God, "not born from human stock, or fleshly will, or a man's decision but from God" (John 1:11-13). Jesus established in his blood a new covenant, whereby we receive the promised Holy Spirit. It is a truthful statement no one will enter the kingdom of God unless they are born a new of the Spirit.
So when we heard the gospel, the Spirit drew us to Christ and a new birth of the Spirit occurred as we believed. It matters not in which order, the word of God exists the sword of the Spirit and the words of Jesus exist Spirit and Truth. What matters is that believing and receiving, the work of God, we have graciously received and been adopted of the Spirit as his own, into the kingdom of God.
and if children then heirs, heirs of God together with Christ, provided with suffer with him so to also to be glorified with him (Romans 8:17)