What does 'feet like a deer' mean in the Bible (Psalm 18; Habakkuk 3:19)?

from the old testament

• The "feet like a deer" expression occurs three times in the Old Testament. The original use is Psalm 18:33 and written by David, which he repeats in 2 Samuel 22:34. The third use is found in Habakkuk 3:19. While there are some variations, 2 Samuel 22:34 and Habakkuk 3:19 say virtually the same thing as the original passage.
• Psalm 18:33 version says, "the God who equipped me with strength, and made my way blameless. He made my feet like the feet of a deer and set me secure on the heights." Note that some versions translate "deer" as "hind." A "hind" is simply a female deer.
• To understand what it means to have "feet like a deer," it helps to understand the type of deer the authors would have been familiar with. Deer in Israel are about the size of mountain goats and act in similar ways. Their compact torsos, long slender legs, and cloven hoofs enable them to balance on tiny outcroppings in the mountains., while their powerful jumps and graceful balance allow them to scale steep mountains in only seconds. The beauty and agility of Israeli deer is recorded in Proverbs 5:19 when a wife is compared to "a lovely deer, a graceful doe." So, the deer represent the ability to move quickly in harsh terrain. That is the background of the imagery used. Both David and Habakkuk were facing insurmountable foes when they used this reference.
• In the case of the original Psalm, David had been unjustly pursued by King Saul with murderous intentions. The Bible records that David penned these words "on the day when the LORD delivered him from the hand of all his enemies, and from the hand of Saul" (see the inscription for Psalm 18; c.f., 2 Samuel 22:1).
• In the Habakkuk context, this line is the closing line of a prayer that Habakkuk composed in response to the dialogue he had with the Lord (Habakkuk 3:19). Habakkuk had questioned the justice of God because He was using the wicked Babylonians to bring judgment upon God's people (Habakkuk 1:2–4, 12–13). It seemed inconceivable that the Babylonian empire should succeed and grow despite their evil ways (Habakkuk 1:6–11). However, God responded to Habakkuk that the Babylonians would also one day face judgment for their sinful behavior (Habakkuk 2:2–20). In this way, Habakkuk's cynicism was turned into faith, and he responded with a prayer of praise and trust (Habakkuk 3:17–19).
• In David and Habakkuk's context, they were describing times of danger. However, both authors knew God was a just God who rescues His people in His perfect timing. They believed He would provide the ability to stand sure-footed like a deer. Also, like a deer stands on rocky cliffs out of the reach of predators, they knew that He would place them on high places away from danger out of their enemies' reach. These men understood their need for God's protection and recognized Him as their only hope. Habakkuk called God "the God of my salvation" (Habakkuk 3:18) while David acknowledged Him as "my rock, in whom I take refuge, my shield, and the horn of my salvation, my stronghold" (Psalm 18:2).

from the new testament

• Tge phrase “feet like a deer” is not found in the New Testament. However, there are other verses that speak about God's protection. For example, in 2 Thessalonians 3:3 Paul says, "the Lord is faithful, and He will strengthen and protect you from the evil one" (c.f., Philippians 4:12–13). Peter says something similar, that believers "are protected by the power of God through faith for a salvation ready to be revealed in the last time" (1 Peter 1:5). Though the exact imagery of deer's feet is not in the New Testament, God's protection is stated in other ways.

implications for today

Like David and Habakkuk, we also can trust in the good and protective God to provide rescue and safety for us. While physical protection on this earth is not promised—David faced dangers and trials long after Saul was dead and he was king—, the Bible reminds us that our ultimate enemies are sin and death (Romans 5:21).

God sent His Son, Jesus, to live a sinless life and provide the ultimate sacrifice to set us free from these enemies (Romans 8:2). Though suffering is expected for believers (James 1:2–4) Jesus kindly asked His Father to keep us protected while we live in this world (John 17:15). It is, indeed, comforting reassurance that even when things are harsh, we know that He is keeping us and growing us, working out all things for our ultimate good (Romans 8:28). Therefore, because of what the Father has done for us in His Son, we are kept sure-footed and out of danger like the deer in Israel.