Prophet Amos (8th c. b.c.). 
St. Jonah, metropolitan of Kiev, Moscow, and all Russia (1461).
Martyrs Vitus (Guy), Modestus, and Crescentia, at Lucania (ca. 303). Martyr Dulas of Cilicia (ca. 305-313). Blessed Jerome (Hieronymus) of Stridonium (419-420). Blessed Augustine, bishop of Hippo (430), and his mother St. Monica of Tagaste (387). St. Michael, first metropolitan of Kiev (992). Great-martyr Tsar Lazar of Serbia (1389). Translation of the relics of St. Theodore the Sykeote, bishop of Anastasiopolis (ca. 9th c.). Monk-martyrs Gregory, abbot, and Cassian, monk, of Avnezh Monastery (Vologda) (1524). St. Ephraim II, patriarch of Serbia (1395). St. Dulas the Passion-bearer, of Egypt (5th c.). St. Symeon, archbishop of Novgorod (1421). Sts. Sergius and Barbara of Oyatsk, monastics, parents of St. Alexander of Svir (1477-1480). St. Theophan, elder of the Roslavl Forests and Optina (1819).
“Marianica” Icon of the Most Holy Theotokos.
Synaxis of the New Martyrs of Serbia. St. Cedronus, patriarch of Alexandria (107). Martyr Hesychius the Soldier, of Dorostolum, and two others, in Moesia (302). St. Orsiesius of Tabennisi, disciple of St. Pachomius the Great (ca. 380). St. Abraham, abbot, of Auvergne (Gaul) (477). St. Spyridon, patriarch of Serbia (1388). New Martyrs of Velic and Gornepolima (Serbia) killed by the Nazis (1943). Apostles Fortunatus, Achaicus, and Stephanas (1st c.).
Repose of Blessed Jonah, fool-for-Christ, of Peshnosha Monastery (1838), Metropolitan Innocent of Peking (1931), Elder Cosmas of Valaam and Riga (1968), and Elder Anthimus of St. Anne’s Skete, Mt. Athos (1996).
Third Sunday After Pentacost. [Rom. 5:1-10; Matt. 6:22-33]
If therefore thine eye be
single[1]
thy whole body shall be full of light. But if thine eye
be evil, thy whole body shall be full of
darkness. Here the mind is called the eye,
and the entire composition of the soul is called the
body. Thus, when the mind is simple then it is light in
the soul; when the mind is evil, then it is dark in the
soul. What are a simple mind and an evil mind? A simple
mind is one which accepts the word of God as is
written, and is convinced beyond a doubt that all is
indeed as is written. It has no deceit, no wavering, or
hesitation. An evil mind is one which approaches the
word of God with slyness, artful disputing, and
questioning. It cannot directly believe, but subjects
the word of God to its sophistry. It approaches the
word not as a disciple, but as a judge and critic, to
test something stated there, and then either scoffs at
it, or says in a haughty manner, “Yes, not
bad.” Such a mind has no firm tenets, because it
clearly does not believe the word of God, and its own
rationale is always unstable—today one way,
tomorrow another. It has only wavering, confusion,
questions without answers; everything is out of place
with it, and it walks in the dark, fumbling its way. A
simple mind sees everything clearly: every thing in it
has a definite character, determined by the word of
God. That is why every thing in it has its place, and
it knows exactly how to behave with relation to
things—it walks along open, visible roads, with
complete assurance that they lead to the true goal.
[1]
In Church Slavonic, the text translates as, If thine
eye be pure.
