The tares closely resembled the wheat while the blades were green; but when the field was white for the harvest, the worthless weeds bore no likeness to the wheat that bowed under the weight of its full, ripe heads. Sinners who make a pretension of piety mingle for a time with the true followers of Christ, and the semblance of Christianity is calculated to deceive many; but in the harvest of the world there will be no likeness between good and evil. Then those who have joined the church, but who have not joined Christ, will be manifest. COL 74.3 The tares are permitted to grow among the wheat, to have all the advantage of sun and shower; but in the time of harvest ye shall “return, and discern between the righteous and the wicked, between him that serveth God and him that serveth Him not.” Malachi 3:18 . Christ Himself will decide who are worthy to dwell with the family of heaven. He will judge every man according to his words and his works. Profession is as nothing in the scale. It is…
"Then shall ye return, and discern between the righteous and the wicked, between him that serveth God and him that serveth him not."
Ellen White directly references Malachi 3:18 in this passage.