Nephi believed that his prayers were heard and would be answered:
For I pray continually for [my people] by day, and mine eyes water my pillow by night, because of them; and I cry unto my God in faith, and I know that he will hear my cry.2 Nephi 33:3
Jacob counseled his people to “pray unto [God] with exceeding faith” (Jacob 3:1). Enos’s guilt was swept away because he prayed in faith (Enos 1:4-8). Both Alma and his son received great blessings because of their prayers of faith (Mosiah 27:14, Alma 31:38).
In December of 1830, when the Lord instructed members of the church to relocate to Ohio, He framed this commandment as an answer to prayer. The members of the church in Colesville, NY, He said, “pray unto me in much faith” (Doctrine and Covenants 37:2).
A month later, at a conference of the church, the Lord twice referred to the prayers of the people in a revelation explaining the new commandment. “I have heard your prayers,” He said. And He later added, “I tell you these things because of your prayers” (Doctrine and Covenants 38:16, 30).
A year ago in General Conference, President Henry B. Eyring reaffirmed this principle:
When I pray with faith, I have the Savior as my advocate with the Father and I can feel that my prayer reaches heaven. Answers come. Blessings are received. There is peace and joy even in hard times.“Prayers of Faith,” General Conference, April 2020
Today, I will pray in faith, knowing that God hears my prayers and that He will send blessings in response.