The Introit of this day's Mass, which begins with the word Reminiscere, from which this Sunday derives its name, is the prayer of a soul begging God's assistance, that she may sin no more:
INTROIT Remember, O Lord, Thy compassions and Thy mercies, which are from the beginning, lest at any time our enemies rule over us: deliver us O God of Israel, from all our tribulations. To Thee O Lord, have I lifted up my soul: in Thee, O my God, I put my trust; let me not be ashamed. (Ps. XXIV.) Glory be to the Father, and to the Son, and to the Holy Ghost, as it was in the beginning, is now, and ever shall be, world without end, Amen.
COLLECT O God, who seest us to be destitute of strength, keep us both inwardly and outwardly; that we may be defended in the body from all adversities, and cleansed in our mind from all evil thoughts. Through our Lord Jesus Christ thy Son, who liveth and reigneth with Thee, in the Unity of the Holy Ghost, God, world without end, Amen.
EPISTLE (I Thess. IV. 1-7.) Brethren, we pray and beseech you in the Lord Jesus, that as you have received of us, how you ought to walk, and to please God, so also you would walk, that you may abound the more. For you know what precepts I have given to you by the Lord Jesus. For this is the will of God, your sanctification; that you should abstain from fornication; that every one of you should know how to possess his vessel in sanctification and honor; not in the passion of lust, like the Gentiles that know not God: and that no man over-reach nor circumvent his brother in business; because the Lord is the avenger of all these things, as we have told you before, and have testified. For God hath not called us unto uncleanness, but unto sanctification; in Christ Jesus our Lord.