These are my favorite Spirit of Prophecy quotes for mothers. I hope that you find them as encouraging as I do.
“The king upon his throne has no higher work than has the mother. The mother is queen of her household. She has in her power the molding of her children’s characters, that they may be fitted for the higher, immortal life. An angel could not ask for a higher mission; for in doing this work she is doing service for God. Let her only realize the high character of her task, and it will inspire her with courage. Let her realize the worth of her work and put on the whole armor of God, that she may resist the temptation to conform to the world’s standard. Her work is for time and for eternity.” Adventist Home, p. 231
“Next to God, the mother’s power for good is the strongest known on earth.” Adventist Home, p. 240
“How far-reaching in its results was the influence of that one Hebrew woman, and she an exile and a slave! The whole future life of Moses, the great mission which he fulfilled as the leader of Israel, testifies to the importance of the work of the Christian mother. There is no other work that can equal this. To a very great extent the mother holds in her own hands the destiny of her children. She is dealing with developing minds and characters, working not alone for time, but for eternity. She is sowing seed that will spring up and bear fruit, either for good or for evil. She has not to paint a form of beauty upon canvas or to chisel it from marble, but to impress upon a human soul the image of the divine.” Patriarchs and Prophets, p. 244
“Let every mother feel that her moments are priceless; her work will be tested in the solemn day of accounts. Then it will be found that many of the failures and crimes of men and women have resulted from the ignorance and neglect of those whose duty it was to guide their childish feet in the right way. Then it will be found that many who have blessed the world with the light of genius and truth and holiness, owe the principles that were the mainspring of their influence and success to a praying, Christian mother.” Patriarchs and Prophets, p. 244
“Let mothers come to Jesus with their perplexities. They will find grace sufficient to aid them in the management of their children. The gates are open for every mother who would lay her burdens at the Saviour’s feet. He who said, “Suffer the little children to come unto Me, and forbid them not,” still invites the mothers to lead up their little ones to be blessed by Him. Even the babe in its mother’s arms may dwell as under the shadow of the Almighty through the faith of the praying mother. John the Baptist was filled with the Holy Spirit from his birth. If we will live in communion with God, we too may expect the divine Spirit to mold our little ones, even from their earliest moments.” Desire of Ages, 512