A kathisma (pl. kathismas or kathismata; from Grk. kathemai, “sit”) is a twentieth part of the Psalter, that is, a section conveniently readable in one sitting or session. Each of the twenty kathismas is subdivided into 3 sections called stases or antiphons. A kathisma is often followed by meditative expository hymns called sessional hymns (from Latin sedere , “sit”; Grk. kathismata , Slav. sedalny). While it is advantageous to read from the Septuagint version of the Psalter, the Hebrew numbering is provided as well. The service books provide a year-round schedule of Psalter readings at vespers and Psalter readings at matins (orthros).
Greek Numbering of Psalms |
Kathisma |
Hebrew Numbering of Psalms |
||||
Stasis 1 | Stasis
2 |
Stasis
3 |
Stasis
1 |
Stasis
2 |
Stasis
3 |
|
1-3 |
4-6 |
7-8 |
I |
1-3 |
4-6 |
7-8 |
9-10 |
11-13 |
14-16 |
II |
9-11 |
12-14 |
15-17 |
17 |
18-20 |
21-23 |
III |
18 |
19-21 |
22-24 |
24-26 |
27-29 |
30-31 |
IV |
25-27 |
28-30 |
31-32 |
32-33 |
34-35 |
36 |
V |
33-34 |
35-36 |
37 |
37-39 |
40-42 |
43-45 |
VI |
38-40 |
41-43 |
44-46 |
46-48 |
49-50 |
51-54 |
VII |
47-49 |
50-51 |
52-55 |
55-57 |
58-60 |
61-63 |
VIII |
56-58 |
59-61 |
62-64 |
64-66 |
67 |
68-69 |
IX |
65-67 |
68 |
69-70 |
70-71 |
72-73 |
74-76 |
X |
71-72 |
73-74 |
75-77 |
77 |
78-80 |
81-84 |
XI |
78 |
79-81 |
82-85 |
85-87 |
88 |
89-90 |
XII |
86-88 |
89 |
90-91 |
91-93 |
94-96 |
97-100 |
XIII |
92-94 |
95-97 |
98-101 |
101-102 |
103 |
104 |
XIV |
102-103 | 104 |
105 |
105 |
106 |
107-108 |
XV |
106 |
107 |
108-109 |
109-111 |
112-114 |
115-117 |
XVI |
110-112 |
113-116:9 |
116:10-118 |
118:1-72 |
118:73-131 |
118:132-176 |
XVII |
119:1-72 | 119:73-131 | 119:132-176 |
119-123 |
124-128 |
129-133 |
XVIII |
120-124 |
125-129 |
130-134 |
134-136 |
137-139 |
140-142 |
XIX |
135-137 |
138-140 |
141-143 |
143-144 |
145-147 |
148-150 |
XX |
144-145 |
146-147 |
148-150 |