George Leo Haydock, on Ps 150:5

Spirit. Wind instrument, (Menochius) or man, who is bound to praise God, even more than the angels, as Christ has assumed his nature, and will bring him to sing with them Alleluia. (Worthington) — Let “all that breathes” praise, (Berthier) including every living creature, (Calmet) as well as the celestial spirits. (Haydock) — Alleluia is not in Septuagint, Syriac, &c. But it is in the Hebrew, and no word could answer better for a conclusion of the psalms, which are almost wholly employed in the divine praises. This ought to be our occupation both on earth, and in heaven. Amen. (Calmet) — Pope Damasus, A.D. 380, ordered the Glory, &c., to be added to each of the psalms, as it has been since observed. (Worthington) — An apocryphal psalm, concerning David encountering Goliath, occurs in many Greek and Latin copies; but it is of no authority. (Calmet) Bible Text & Cross-references: An exhortation to praise God with all sorts of instruments. 1 Alleluia. Praise ye the Lord in his holy places: praise ye him in the firmament of his power. 2 Praise ye him for his mighty acts: praise ye him according to the multitude of his greatness. 3 Praise him with sound of trumpet: praise him with psaltery and harp. 4 Praise him with timbrel and choir: praise him with strings and organs. 5 Praise him on high sounding cymbals: praise him on cymbals of joy: let every spirit praise the Lord. Alleluia. Table of Psalms 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque finibus commodo nibh, ut elementum velit sollicitudin at. Donec suscipit commodo risus. Nunc vel orci eget ligula elementum consequat. Fusce velit erat, convallis scelerisque aliquet ut, facilisis egestas tellus. Quisque sit amet sapien placerat, ultricies sapien ut, vestibulum ex.