Splendor Veritatis


Psalm numbering scheme:

Imagining a 2-Hour, 4-Week Psalter

Overview

I have always been attracted to the idea of praying all 150 Psalms in one week. I have experimented with praying two such Psalters. First, the Anglican Breviary, which is simply an English translation of the 1911 Divino Afflatu Divine Office, using St. Pius X’s 1-week, but very efficient Psalter. Later, the 1962 Monastic Diurnal (with supplemental resources for Matins), which still uses St. Benedict’s arrangement from the sixth century. Both proved to be too long and arduous for a simple and busy layman such as myself.

Most recently, I’ve transitioned to using the 4-volume Liturgy of the Hours. Despite disliking it more than both of the two previous versions of the Divine Office that I’ve used, it’s much shorter, and it much more manageable. But due to some combination of busy-ness and a lack of discipline, I’ve only managed to be consistent with Lauds and Vespers, which leaves me with a 4-week cycle which does not even include the entire Psalter.

This all led to the question: Is a 4-week Psalter possible if we restrict ourselves to only Lauds and Vespers? Ideally, this arrangement would allow us to reuse the existing antiphons from the LotH, meaning that we’d only be able to pray 3 Psalms per hour.

Simple math says yes:

  • 3 Psalms per hour * 2 hours per day =
  • 6 Psalms per day * 7 days per week =
  • 42 Psalms per week * 4 weeks per cycle =
  • 168 Psalms

If we eliminate all of the canticles, it allows us to pray every Psalm, and gives us 18 slots to fill with divisions for the longer Psalms. This is many fewer division slots than the current LotH, so we will have to be strategic in how we use them.

Our goal is to create a 4-week, 2-hour Psalter that:

  • Uses all 150 Psalms with minimal repetition (likely no repetition at all)
  • Selects Psalm divisions that produce the greatest uniformity in length
  • Arranges the Psalms in a way that conforms as much as possible to traditional Psalters

Comparing Major Psalters

Our first step is to review existing Psalters. For simplicity, I’ve chosen 3: the Monastic Psalter, St. Pius X’s Psalter, and the Liturgy of the Hours’ Psalter. Hovering any of the Psalms in the tables highlights all of the instances of that Psalm in all the tables. Two notes about this:

  1. Hovering highlights all instances of the Psalm, including divisions.
  2. It is possible to switch between Greek and Masoretic numbering. But the highlighting is based on the Greek numbering. So, for example, hovering over an instance of Psalm 9 in the Masoretic numbering scheme will also highlight instances of Psalm 10, since Psalm 9 and 10 in the Masoretic numbering scheme are both the same Psalm in the Greek numbering scheme (Psalm 9).

Monastic (c. 540)

Hour Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Matins 3
94
20
21
22
23
24
25
26
27
28
29
30
31
3
94
32
33
34
36a
36b
37
38
39
40
41
43
44
3
94
45
46
47
48
49
51
52
53
54
55
57
58
3
94
59
60
61
65
67a
67b
68a
68b
69
70
71
72
3
94
73
74
76
77a
77b
78
79
80
81
82
83
84
3
94
85
86
86
88a
88b
92
95
96
97
98
99
100
3
94
101
102
103a
103b
104a
104b
105a
105b
106a
106b
107
108
Lauds 66
50
117
62
Dn 3
148
149
150
66
50
5
35
Is 12
148
149
150
66
50
42
56
Is 38
148
149
150
66
50
63
64
1 Sm 2
148
149
150
66
50
87
89
Ex 15
148
149
150
66
50
75
91
Hb 3
148
149
150
66
50
141
142
Dt 32
148
149
150
Prime 118
118
118
118
1
2
6
7
8
9a
9b
10
11
12
13
14
15
16
17a
17b
18
19
Terce 118
118
118
118
118
118
119
120
121
119
120
121
119
120
121
119
120
121
119
120
121
Sext 118
118
118
118
118
118
122
123
124
122
123
124
122
123
124
122
123
124
122
123
124
None 118
118
118
118
118
118
125
126
127
125
126
127
125
126
127
125
126
127
125
126
127
Vespers 109
110
111
112
113
114
115
116
128
129
130
131
132
134
135
136
137
138a
138b
139
140
141
143a
143b
144a
144b
145
146
147
Compline 4
90
133
4
90
133
4
90
133
4
90
133
4
90
133
4
90
133
4
90
133

Pius X (1911)

Hour Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Matins 1
2
3
8
9a
9a
9b
9b
10
13
14
16
17a
17b
17c
19
20
29
34a
34b
34c
36a
36b
36c
37a
37b
38
44a
44b
45
47
48a
48b
49a
49b
50
61
65a
65b
67a
67b
67c
68a
68b
68c
77a
77b
77c
77d
77e
77f
78
80
82
104a
104b
104c
105a
105b
105c
106a
106b
106c
Lauds 92
99
62
Dn 3a
148
46
5
28
1 Chr 29
116
95
42
66
Tb 13
134
96
64
100
Jdt 16
145
97
89
35
Jer 31
146
98
142
84
Is 45
147
149
91
63
Eccl 36
150
Prime 117
118
118
23
18
18
24
24
24
25
51
52
22
71
71
21
21
21
93
93
107
Terce 118
118
118
26
26
27
39
39
39
53
54
54
72
72
72
79
79
81
101
101
101
Sext 118
118
118
30
30
30
40
41
41
55
56
57
73
73
73
83
83
86
103
103
103
None 118
118
118
31
32
32
43
43
43
58
58
59
74
75
75
88
88
88
108
108
108
Vespers 109
110
111
112
113
114
115
119
120
121
122
123
124
125
126
127
128
129
130
131
132
135
135
136
137
138
138
139
140
141
143
143
144
144
144
Compline 4
90
133
6
7
7
11
12
15
33
33
60
69
70
70
76
76
85
87
102
102

Liturgy of the Hours (1971)

Hour Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Invitatory
All Weeks 94
Office of Readings (Matins)
Week 1 1 2 3 6 9a 9a 9b 9b 11 17 17 17 17 17 17 34 34 34 130 131 131
Week 2 103 103 103 30 30 30 36 36 36 38 38 51 43 43 43 37 37 37 135 135 135
Week 3 144 144 144 49 49 49 67 67 67 88 88 88 88 88 89 68 68 68 106 106 106
Week 4 23 65 65 72 72 72 101 101 101 102 102 102 43 43 43 54 54 54 49 49 49
Morning Prayer (Lauds)
Week 1 62
Dan 149
5
1 Chron 28
23
Tobias 32
35
Judith 46
56
Jer 47
50
Isaias 99
118
Exod 116
Week 2 117
Dan 150
41
Sir 18a
42
Isaias 64
76
Sam 96
79
Is 12:1-6 80
50
Hab 147
91
Deut 8
Week 3 92
Dan 148
83
Isaias 95
84
Isaias 66
85
Isaias 97
86
Isaias 98
50
Jer 99
118
Wis 116
Week 4 117
Dan 150
89
Isaias 134
100
Dan 143
107
Isaias 145
142
Isaias 146
50
Tob 147
91
Ezek 8
Midday (Terce, Sext or None)
Week 1 117 117 117 18b 7 7 118 12 13 118 16 16 118 24 24 118 25 27 118 33 33
Week 2 22 75 75 118 39 39 118 52 53 118 54 54 118 55 56 118 58 59 118 60 63
Week 3 117 117 117 118 70 70 118 73 73 118 69 74 118 78 79 21 21 21 118 33 33
Week 4 22 75 75 118 81 119 118 87 87 118 93 93 118 127 128 118 132 139 118 44 44
Evening Prayer (Vespers)
Week 1 109 113a
Apoc
10 14
Eph
19 20
Apoc
26 26
Col
29 31
Apoc
40 45
Apoc
118 15
Phil
Week 2 109 113b
Apoc
44 44
Eph
48 48
Apoc
61 66
Col
71 71
Apoc
114 120
Apoc
112 115
Phil
Week 3 109 110
Apoc
122 123
Eph
124 130
Apoc
125 126
Col
131 131
Apoc
134 134
Apoc
121 129
Phil
Week 4 109 111
Apoc
135 135
Eph
136 137
Apoc
138 138
Col
143 143
Apoc
144 144
Apoc
140 141
Phil
Night Prayer (Compline)
All Weeks 90 85 142 30 129 15 87 4 133