In verse 2 it says that they received those to baptism who had a broken heart and a contrite spirit.
What does it mean to have a broken heart and a contrite spirit?
President Ezra Taft Benson (1899–1994) explained that it is the same as godly sorrow, which is “a deep realization that our actions have offended our Father and our God. It is the sharp and keen awareness
that our behavior caused the Savior, He who knew no sin, even the greatest of all, to endure agony and
suffering. Our sins caused Him to bleed at every pore. This very real mental and spiritual anguish is what
the scriptures refer to as having ‘a broken heart and a contrite spirit.’ (3 Ne. 9:20; Moro. 6:2; D&C 20:37; 59:8; Ps. 34:18; 51:17; Isa. 57:15.) Such a spirit is the absolute prerequisite for true repentance” (“A Mighty Change of Heart,” Ensign, Oct. 1989, 4).
Elder Bruce D. Porter of the Seventy explained further, defining the meaning of “a broken heart and a contrite spirit”: When our hearts are broken, we are completely open to the Spirit of God and recognize our dependence on Him for all that we have and all that we are. The sacrifice so entailed is a sacrifice of pride in all its forms. Like malleable clay in the hands of a skilled potter, the brokenhearted can be molded and shaped in the hands of the Master. . . .
“. . . Those who have a broken heart and a contrite spirit are willing to do anything and everything that
God asks of them, without resistance or resentment. We cease doing things our way and learn to do them
God’s way instead. . . .
“There is yet another dimension of a broken heart—namely, our deep gratitude for Christ’s suffering on
our behalf. . . . When we remember the Savior and His suffering, our hearts too will break in gratitude for the Anointed One.
“As we make the sacrifice to Him of all that we have and all that we are, the Lord will fill our hearts with
peace. He will ‘bind up the brokenhearted’ (Isaiah 61:1) and grace our lives with the love of God” (in
Conference Report, Oct. 2007, 32–33; or Ensign, Nov. 2007, 32).