“Do you know how the clouds are balanced, Those wondrous works of Him who is perfect in knowledge?” (Job 37:16)
Elihu asked a rhetorical question to Job which informs us of the perfection [fullness; completeness] of God’s knowledge. The fancy term is “omniscience” meaning all-knowledge. God knows all the parameters that the Universe is governed by for He created it (cf. Job 38). He knows about all of the animals and other creatures (cf. Job 39:1-30; Job 40:15-41:34). He knows all of our thoughts [the contents of the heart] (cf. Job 42:1-3; Ezek. 11:5; 1 Kings 8:39). He knows about all our doings (cf. Ps. 139:1-6). He knows things which have not come to pass (cf. Isa. 46:10). He knows secret things (cf. Deut. 29:29; Ecc. 12:14; Heb. 4:13).
This perfect knowledge coupled with His other attributes [holiness; righteousness; truthfulness] makes God the perfect Judge (cf. Gen. 18:25). He has all the evidence! We cannot hide anything from God. Ananias and Sapphira tried that and they paid the ultimate price (cf. Acts 5:1-11). Remember, God revealed His will for us so that we can follow it and be with Him forever in Heaven (Deut. 29:29; Eph. 5:17; Rom. 12:1-2). Let us be transparent, honest, and righteous before the All-Knowing One!