The Grace of God is Grace, pure & simple; it is neither common nor does it come through any means but One, that is, through the Free Gift of our Heavenly Father! We do not earn it or merit somehow by observing certain ritualistic signs which simply pointed to the Reality. The rain, one of the many blessings of Communion with our Heavenly Father, does not fall commonly ( alike ) on the just & the unjust because they both did a rain-dance ( as some seem to believe ), nor does the sun rise on one group and not on another because the first group prayed for it to rise, and the other did not!
It might well be argued that there is a difference between the Grace ( Sun, rain, etc. ) that is common to all, and the Special Grace which seems to be reserved for God's People! For instance, the sun & rain might be thought of as natural blessings, while that Special Grace might include Spiritual Blessings ( like belonging to the Family of God, Communion with our Heavenly Father, etc. ). Though His sun does rise on the just & the unjust, and His rain falls on the evil & the good, there is very often a harked difference too, not only how and when it falls, but in how those different groups receive it. A wicked or evil person may have an altogether different view of those blessings, the Grace, than a good & just person might; to the first group it may be more of a curse than a blessing, while the latter group receives it with joy!
The disciples of Jesus were told to do what is right & good, that they might be ( know as) sons of our Father in Heaven. We should do the same to show that we are Sons of our Heavenly Father, so that our Light may thus shine before men! Do we shine that light by observing ritualistic sign, or do we reveal Who We Are by doing what is just & right & good?! By doing, before men & women ( and to them ) what is right & just & good,, we thus show them that Grace which our Heavenly Father has shown us!
In a sense, then, one could say that WE are a Means of Grace!
Charles Haddon Shank