Grace makes available God's provision to every human being whether born-again or unbeliever in an unmerited measure however each human being must willingly *use grace* primarily to obtain salvation in Christ Jesus, it is this new life of Christ Jesus inside the mortal-body that grows from babyhood to adulthood then establishes in any area of human endeavor or vocation.
It is therefore a reality that those who are not born-again are in the wrong endeavours of life struggling through their flesh to please God and this is an impossible reality because no human being can please God without faith in Christ Jesus.
It is also a clear reality that amongst those in vocations of life(matrimony, celibacy, spinsters, bachelor, priests, pastors, reverend-sisters/brothers/monks/nuns, prophets, teachers e.t.c) many of them are in the wrong vocation by their flesh struggling to be pleasing to God which is impossible because they are not ready to *use grace* to accept salvation in Christ Jesus first so that the new life of Christ Jesus inside their mortal-bodies will now choose the vocation he wills for them on this earth.
It is a reality that so many people are joined on the altar as husband and wife or even those who joined themselves in marriage but they are not approved before God.
There are also so many on the altar as ministers *legally ordained by Church leaders or they ordained themselves* but they are not approved by God.
hence Jesus Christ declared "... except for the reason of *infidelity*, they can be separated"
This infidelity is not referring to the marriage spouse or to the church but *infidelity towards God who did not approve them to get into these vocation in the first place* because they are not *sons/heirs of God*.
This is the foundation for so many people on the altar teaching what is not the sound gospel of Jesus Christ because "it is only what is born of the Spirit that can transfer/impart Spiritual life unto those who encounter him/her while what is born of the flesh will only transfer flesh" (John 3:6)
This is also the bases for the alarming marital disintegration, domestic-violence, abuse e.t.c among those who claim to be Christians in our present generation. Marriage is an institution designed by God hence only those who are willing to use grace for the primary purpose of receiving salvation in Christ Jesus can be able to allow the new life of Christ Jesus inside their mortal-bodies to achieve God's purpose for marriage on this earth.
If these people who wrongly entered into different endeavors receive the sound gospel of Jesus Christ Crucified and believe it, the new-life of Christ Jesus will separate them from such endeavors and vocations not minding what we shall tag them using human language yet they are being lead by the genuine spirit of Christ Jesus inside them now to engage in a new endeavor and vocations of life.
Great Grace!!!