the everlasting
Hitchcock's Bible Names Dictionary
JAH.See God, § 2 (g).
Hastings' Dictionary of the Bible
Edited by James Hastings, D.D. Published in 1909
Condensing in one emphatic syllable all that is implied in Jahveh (or Yahweh), the true pronunciation of Jehovah (Psa_68:4); first in Exo_15:2 (Hebrew). Often in names, as Eli-jah. Only in poetry: Isa_12:2, "Jah (or Yah) Jehovah is my strength and my song"; (Isa_26:4) "in Jah (or Yah) Jehovah is the Rock of ages." The union of the two names expresses in the highest degree God's unchanging love and power. Hallelu-Jah (or Hallelu-Yah) is "Praise ye Jah (or Yah)". Psa_89:8, "O Jehovah, God of hosts, who, as Thou, is a strong Jah (or Yah)?" the emphatic concentration of the name "Jehovah." The spirit impressed with a sense of God feels the need of repeating frequently that name in which His being is comprehended (Hengstenberg).
Fausset's Bible Dictionary
By Andrew Robert Fausset, co-Author of Jamieson, Fausset and Brown's 1888.
Jah. (Jehovah). The abbreviated form of Jehovah, used only in poetry. It occurs frequently in the Hebrew, but with a single exception, Psa_68:4, is rendered "Lord" in the Authorized Version. The identity of Jah and Jehovah is strongly marked in two passages of Isaiah ? Isa_12:2; Isa_26:4. See Jehovah.
Smith's Bible Dictionary
By Dr. William Smith.Published in 1863
one of the names of God, which we meet with in the composition of many Hebrew words; as, Adonijah, Allelujah, Malachia; that is, My Lord, Praise the Lord, The Lord is my King.
Biblical and Theological Dictionary by Richard Watson
PRINTER 1849.
ja. See GOD, NAMES OF.
International Standard Bible Encyclopedia
PRINTER 1915.
Jah
(Heb. Yah, יָהּ, a contraction for יַהוָֹה, Jehovah, Psa_68:4, elsewhere rendered Lord). SEE JEHOVAH; SEE HALLELUJAH. It also enters into the composition of many Heb. names, as ADONIJAH, ISAIAH, etc.
CYCLOPEDIA OF BIBLICAL, THEOLOGICAL AND ECCLESIASTICAL
press 1895.