Gray ac­cept­ed Christ at age 22. He was ed­u­cat­ed at Bates Col­lege, Lew­is­ton, Maine (Doc­tor of Di­vin­i­ty), and the Un­i­ver­si­ty of Des Moines, Io­wa (Doc­tor of Laws). In 1879 he be­came Rec­tor of the First Re­formed Epis­co­pal Church in Bos­ton, Mass­a­chu­setts, where he served 14 years. He then became dean (1904-25) and pre­si­dent (1925-34) of the Moo­dy Bi­ble In­sti­tute, Chi­ca­go, Ill­i­nois, and di­rect­ed pub­li­ca­tion of four edi­tions (1921-28) of the Voice of Thanks­giv­ing, of­fi­cial hym­nal of the In­sti­tute.

A con­serv­a­tive the­o­logian, Gray was one of se­ven ed­it­ors of the pop­u­lar Sco­field Ref­er­ence Bi­ble. He was a fine schol­ar and ex­cel­lent Bi­ble teach­er, but his in­ter­ests went be­yond mere ac­a­demics. He pro­moted the Sun­day School, and took an in­ter­est in ci­vic af­fairs and pa­tri­o­tic causes. He backed efforts at so­cial bet­ter­ment, sup­port­ed Pro­hi­bi­tion, and wrote about 20 books.

• Hustad, p. 248

1. Leav­ing It All with Je­sus
2. Let Him Come
3. Nor Sil­ver Nor Gold
4. My Sins Laid Open to the Rod
5. Only a Sin­ner
6. Savior Who Loves Me, The
7. Sound His Prais­es
8. Story That Ne­ver Grows Old, The
9. This My Pray­er
10. True His­tor­ic Je­sus, The
11. Victory in My Soul
12. What Did He Do?
13. Who Is the King of Glo­ry?
14. All Hail the Com­ing Son of God
15. Angel Who Re­deemed Me, The
16. At the Turn of the Road
17. Bible, There It Stands!, The
18. Burden of My Fear and Sin, The
19. Buttercups Tell Us, The
20. By His Stripes We Are Healed
21. Christ Je­sus Hath the Pow­er
22. Christian Fel­low­ship Song
23. Come to the Sav­ior, O Do Not De­lay
24. Complete in Thee! No Work of Mine
25. Even from the Cra­dle My Life Thou Hast Guid­ed
26. Father of Mer­cies, When Fear Pos­sessed Me
27. Freedom Reigns With­in the Hearts
28. God Keeps His Prom­ise (1928)
29. God Will Give His Child­ren Peace
30. He Came from the Bo­som of God
31. He Has Gone Out of Sight
32. Holy Ghost! With Light, Shin­ing on This Heart of Mine
33. Holy Spir­it, Bend­ing Low­ly
34. Holy Spir­it, Calm the Rest­less
35. I Am on the Glo­ry Side
36. I Find Thee So Pre­cious
37. I Have No Friend Like Je­sus
38. I Know No Other Je­sus
39. I Saw One Hang­ing on a Tree
40. I Want a Sense of Par­don­ing Grace
41. If Any Man Thirst, Let Him Come un­to Me
42. If No One Else Will Say It
43. If One Bid Thee Go a Mile
44. In All the Gos­pel of God’s Grace
45. In All the Im­po­tence of Need
46. In Pain, on Couch of Weak­ness
47. It Is a Good Thing to Give Thanks un­to the Lord
48. I’ve Part­ed at Last from the World and Its Store
49. Jesus Is Com­ing, Is Com­ing
50. Jesus Knows My Great­est Tri­al
51. Let Us Ex­alt the Name of Christ To­get­her
52. Lift Up Your Heads, Ye Gates Eter­nal
53. Like Sweet Mu­sic, Soft­ly Break­ing
54. Lord God the Ho­ly Ghost
55. Missing the Lost, O Shep­herd True
56. My Fa­ther, I Give Thanks
57. My Heart Has Come to the Place of Rest
58. My Sins Laid Open to the Rod
59. O Bro­ther, Be­lov­ed in Christ Je­sus
60. O Drink of the Foun­tain That Ne­ver Runs Dry
61. O God, We Want to Thank Thee
62. O Hast­en Thine Ap­pear­ing
63. O How Can We Thank Thee, Our God, for the Bi­ble?
64. O Je­sus, I Need Thee
65. O Let Us Keep Prais­ing
66. O Lis­ten to Our Won­drous Sto­ry
67. O Lord, Send a Re­viv­al!
68. O Ne­ver Look Back to the World Again
69. O Pil­grim, as You Jour­ney
70. O Tell Me the Sto­ry That Ne­ver Grows Old
71. O Thou, My Je­sus, Thou Didst Me
72. Of Self I Am Wea­ry
73. On the Cross His Life Out-poured
74. One with the Lord, and Bound to One An­o­ther
75. Only a Sin­ner
76. Over the Ri­ver, the Old Sweet Song
77. Refiner Sat By the Se­ven-Fold Fire, The
78. See, Je­sus Comes to Jor­dan’s Bank
79. Sometimes We Feel Down­heart­ed
80. Sound the Prais­es of Our Lord
81. Savior Who Loves Me, The
82. There Is a Gate! O Bless the Lord
83. There Is Wis­dom That Gold Can­not Buy
84. There’s a Way Out of Sin
85. This Life Is a Bat­tle
86. Two Paths Are Be­fore You, O Soul To­day
87. Wedding Feast at Ga­li­lee, A
88. When I Be­lieved on Je­sus Christ
89. When Is­ra­el Out of Egypt Came
90. When Is­ra­el Went Out of Egypt
91. Why Say Ye Not a Word?
92. Will You Heed the Di­vine In­vi­ta­tion?