Commentaries:
Jamieson, Fausset, and Brown
known—by thine own observation and reading of Scripture.
heard—from tradition of the fathers.
everlasting, etc.—These attributes of Jehovah ought to inspire His afflicted people with confidence.
no searching of his understanding—therefore thy cause cannot, as thou sayest, escape His notice; though much in His ways is unsearchable, He cannot err (Job 11:7-9). He is never "faint" or "weary" with having the countless wants of His people ever before Him to attend to.
Other Jamieson, Fausset, and Brown entries containing Isaiah 40:28:
Genesis 2:2
Psalms 147:4-5
Isaiah 40:29
Isaiah 45:12
Isaiah 51:13
DISCLAIMER: Church of the Great God (CGG) provides these resources to aid the individual in studying the Bible. However, it is up to the individual to "prove all things, and hold fast to that which is good" (I Thessalonians 5:21). The content of these resources does not necessarily reflect the views of CGG. They are provided for information purposes only.