"There is in human nature a tendency to run to extremes and from one extreme to another entirely opposite. Many are fanatics. They are consumed by a fiery zeal which is mistaken for religion, but character is the true test of discipleship. Have they the meekness of Christ? have they His humility and sweet benevolence? Is the soul-temple emptied of pride, arrogance, selfishness, and censoriousness? If not, they know not what manner of spirit they are of. They do not realize that true Christianity consists in bearing much fruit to the glory of God. 5T 305.4"
"But the fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith, Meekness, temperance: against such there is no law."
The EGW passage emphasizes the importance of character and bearing fruit, specifically mentioning meekness, humility, and benevolence, which are all aspects of the fruit of the Spirit described in Galatians 5:22-23.