Verse 23. - Then shall thou walk in thy way safely. The first of the promises of protection, which follow from vers. 23-26. He who keeps "sound wisdom and discretion" shall enjoy the greatest sense of security in all situations of life. Safely (lavetakh); either in confidence, as Vulgate fiducialiter, i.e. confidently, because of the sense of security (cf. LXX., πεποιθὼς ἐν εἰρήνῃ, and ver. 26); or in security: the adverb lavetakh is equivalent to betakh in Proverbs 1:30 and Proverbs 10:9. The allusion is obvious. As he who is accompanied by an escort proceeds on his way in safety, so you protected by God will pass your life in security; or, as Trapp, "Thou shalt ever go under a double guard, 'the peace of God' within thee (Philippians 4:7), and the 'power of God' without thee (1 Peter 1:5)." And thy foot shall not stumble; literally, and thou shall not strike thy foot. Stumble in the original is thiggoph, 2 singular kal future of nagaph, "to smite, .... strike against with the foot." So in Psalm 91:12. The Authorized Version, however, correctly gives the sense. The LXX., like the Authorized Version, makes "foot" the subject, Ὁ δὲ ποῦς σου σὺ μὴ προσκόψῃ, "(That) thy foot may not stumble." For a similar assurance, see Proverbs 4:12. The meaning is: You will not stumble, because you will be walking in the way of wisdom, which is free from stumbling blocks (Lapide). You will not fall into sin.

3:21-26 Let us not suffer Christ's words to depart from us, but keep sound wisdom and discretion; then shall we walk safely in his ways. The natural life, and all that belongs to it, shall be under the protection of God's providence; the spiritual life, and all its interests, under the protection of his grace, so that we shall be kept from falling into sin or trouble.Then shall thou walk in thy way safely,.... In the way of thy duty and business, without fear of any enemy; having in sight the Captain of salvation gone before, and walking in such ways of pleasantness and peace as Wisdom's are; and having such a lamp to the feet, and such a light unto the paths, as the Gospel and its doctrines be;

and thy foot shall not stumble; at the word and the truths of it, as some men do, being thereunto appointed; and at Christ, the stumbling stone laid in Zion, particularly at his justifying righteousness; see 1 Peter 2:8.