This Act of Consecration to the Sacred Heart of Jesus was composed by Pope Leo XIII in 1899.
When witnessing the many evils in the world, Pope Leo XIII looked to the Sacred Heart of Jesus.
He wrote in his encyclical, Annum Sacrum, “Hence that abundance of evils which have now for a long time settled upon the world, and which pressingly call upon us to seek for help from Him by whose strength alone they can be driven away. Who can He be but Jesus Christ the Only-begotten Son of God? “For there is no other name under heaven given to men whereby we must be saved” (Acts 4:12).
Pope Leo XIII then went on to write, “today, behold another blessed and heavenly token is offered to our sight-the most Sacred Heart of Jesus, with a cross rising from it and shining forth with dazzling splendor amidst flames of love. In that Sacred Heart all our hopes should be placed, and from it the salvation of men is to be confidently besought.”
He then included with his letter an Act of Consecration for all the bishops of the world to recite, offering up the human race to the Sacred Heart.
Here is that prayer, which remains a powerful way to consecrate our own hearts to the Sacred Heart.
Most sweet Jesus, Redeemer of the human race, look down upon us humbly prostrate before Thine altar. We are Thine, and Thine we wish to be; but, to be more surely united with Thee, behold each one of us freely consecrates himself today to Thy most Sacred Heart. Many indeed have never known Thee; many too, despising Thy precepts, have rejected Thee. Have mercy on them all, most merciful Jesus, and draw them to Thy most Sacred Heart.
Be Thou King, O Lord, not only of the faithful who have never forsaken Thee, but also of the prodigal children who have abandoned Thee; grant that they may quickly return to their Father’s house lest they die of wretchedness and hunger.
Be Thou King of those who are deceived by erroneous opinions, or whom discord keeps aloof and call them back to the harbour of truth and unity of faith, so that soon there may be but one flock and one shepherd.
Be Thou King of all those who even now sit in the shadow of idolatry or Islam, and refuse not Thou to bring them into the light of Thy kingdom. Look, finally, with eyes of pity upon the children of that race, which was for so long a time Thy chosen people; and let Thy Blood, which was once invoked upon them in vengeance, now descend upon them also in a cleansing flood of redemption and eternal life.
Grant, O Lord, to Thy Church, assurance of freedom and immunity from harm; give peace and order to all nations, and make the earth resound from pole to pole with one cry: Praise to the Divine Heart that wrought our salvation: to it be glory and honour forever. Amen.