God Knows Everything - Devotional

GracetoYou.org ^ | 2001 | John MacArthur, Grace Community Church

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“Great is our Lord, and abundant in strength; His understanding is infinite” (Psalm 147:5).

God knows everything, and so He knows our sin.

Our time in history has been called “the Information Age.” Computers work around the clock storing the glut of information from all branches of knowledge. And this flood of data is growing bigger all the time. Without the help of advanced technology, we could process and interpret only a tiny fraction of it.

In contrast, God is omniscient; He knows everything. Our Scripture for today says, “His understanding is infinite.” Isaiah asks, “Who has directed the Spirit of the Lord, or as His counselor has informed Him? With whom did He consult and who gave Him understanding? And who taught Him in the path of justice and taught Him knowledge, and informed Him of the way of understanding?” (40:13-14). The answer to all those questions is, “No one.”

Since His knowledge is infinite, God never learns anything, nor does He forget anything. When you pray, you’re not telling God something He doesn’t know. He merely chooses to work through our prayers.

God knows every detail of our lives. Jesus says, “The very hairs of your head are all numbered” (Luke 12:7). God doesn’t have to count them because He intrinsically knows how many there are. He also knows all our thoughts (Isa. 66:18). David says, “Even before there is a word on my tongue, behold, O Lord, Thou dost know it all” (Ps. 139:4). In that same psalm, David goes on to say, “Even the darkness is not dark to Thee” (v. 12). You can’t hide anything from the knowledge of God.

God’s omniscience should be a deterrent to our sinning. Think about some of the wrongs you did as a child when your parents weren’t around. You never would have done those things in front of them because you didn’t want to be punished. And you might have gotten away with a few things. But “God will bring every act to judgment, everything which is hidden, whether it is good or evil” (Eccles. 12:14). Even though the eternal penalty for sin has been paid by Christ, God still disciplines us when we sin (Heb. 12:5-11). Is there anything in your life you would be ashamed about if God knew? If so, repent, because He does know!

Suggestions for Prayer

Praise God for His infinite knowledge.

For Further Study

Read David’s praise for God’s omniscience in Psalm 139:1-6. What specific areas of God’s knowledge does he mention?

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