Two companion proverbs. Nothing avails against, nothing without, God. The horse is the type of warlike strength, used chiefly or exclusively in battle. 1Ki 4:26; 1 Kings 10:26-28, may be thought of as having given occasion to the latter of the two proverbs.
Related Commentaries of Proverbs 21:30
Proverbs 21:30-31
30 There is no wisdom nor understanding nor counsel against the LORD.
31 The horse is prepared against the day of battle: but safetyf is of the LORD.