Tuesday in the Thirteenth Week after Pentecost

The Lesson of the Epistle of the Holy Apostle Paul to the Corinthians.
II Corinthians §187 (8:16-9:5).
Brethren: Thanks be to God, Who hath given the same carefulness for you in the heart of Titus. For indeed he accepted the exhortation; but being more careful, of his own will he went unto you. We have sent also with him the brother, whose praise is in the gospel through all the churches. And not that only, but he was also ordained by the churches companion of our travels, for this grace, which is administered by us, to the glory of the Lord, and our determined will: avoiding this, lest any man should blame us in this abundance which is administered by us. For we forecast what may be good not only before God, but also before men. And we have sent with them our brother also, whom we have often proved diligent in many things; but now much more diligent, with much confidence in you, either for Titus, who is my companion and fellow labourer towards you, or our brethren, the apostles of the churches, the glory of Christ. Wherefore shew ye to them, in the sight of the churches, the evidence of your charity, and of our boasting on your behalf. For concerning the ministry that is done towards the saints, it is superfluous for me to write unto you. For I know your forward mind: for which I boast of you to the Macedonians. That Achaia also is ready from the year past, and your emulation hath provoked very many. Now I have sent the brethren, that the thing which we boast of concerning you, be not made void in this behalf, that (as I have said) you may be ready: lest, when the Macedonians shall come with me, and find you unprepared, we (not to say ye) should be ashamed in this matter. Therefore I thought it necessary to desire the brethren that they would go to you before, and prepare this blessing before promised, to be ready, so as a blessing, not as covetousness.

The Lesson of the Holy Gospel according to Saint Mark.
Saint Mark §12 (3:13-19a).
At that time: Jesus, going up into a mountain, called unto Him whom He would Himself: and they came to Him. And He made that twelve should be with Him, and that He might send them to preach. And He gave them power to heal sicknesses, and to cast out devils. And to Simon He gave the name Peter: and James the son of Zebedee, and John the brother of James; and He named them Boanerges, which is, the sons of thunder: and Andrew and Philip, and Bartholomew and Matthew, and Thomas and James of Alpheus, and Thaddeus, and Simon the Cananean:and Judas Iscariot, who also betrayed Him.