In his April 2015 General Conference address, David A. Bednar stated:

Correct knowledge of and faith in the Lord empower us to hush our fears because Jesus Christ is the only source of enduring peace. He declared, “Learn of me, and listen to my words; walk in the meekness of my Spirit, and you shall have peace in me” (D&C 19:23).

Elder Bednar closed his talk by referring to John 14:27:

Peace I leave with you, my peace I give unto you: not as the world giveth, give I unto you. Let not your heart be troubled, neither let it be afraid.

Thank you, Elder Bednar, for your uplifting insight.