https://en.wikipedia.org/wiki/Free_Grace_theology
Free Grace theology is dispensational in its assumptions regarding the philosophy of history and in terms of its networks and affiliations.
“Free Grace” Theology and Matthew 7:21-23 | The Cripplegate
Free grace position (FG)
Among the many passages of Scripture confront the FG view is Matthew 7:21-23 , where Jesus says:
21 “Not everyone who says to Me, ‘Lord, Lord,’ will enter the kingdom of heaven, but he who does the will of My Father who is in heaven. 22 Many will say to Me on that day, ‘Lord, Lord, did we not prophesy in Your name, and in Your name cast out demons, and in Your name perform many miracles?’ 23 And then I will declare to them, ‘I never knew you; depart from Me, you who practice lawlessness.’”
The obvious problem that this passage presents for the FG position is the assertion of Jesus that only those who “do the will of my Father” will enter the kingdom. This runs contrary to the FG gospel, which says that most of those who enter the kingdom will not have lived a life of obedience to God during their lives on earth.
One of the primary ways that FG teachers try to solve this dilemma is by using John 6:40 to interpret “the will of My Father” in Matthew 7:21 (e.g., see Joseph Dillow, The Reign of the Servant Kings, 199; Bob Wilkin, Confident in Christ, 216). According to this approach, doing the will of the Father in John 6:40 (and thus in Matthew 7:21) refers to believing in Christ. Therefore, the argument goes, Matthew 7:21 simply says that only those who do the Father’s will (which is to believe in Christ) will enter the kingdom of heaven. And with that, the tension between Matthew 7:21-23 and FG theology is said to vanish.