The passage
      v26. As Jesus was persecuted, so a disciple will face persecution. Disciples should not be afraid of "them" (the persecutors, eg. the Pharisees). The persecutor may hide their evil motives behind a concocted self-righteous justification, but in the day of judgment their evil will be evident and will be dealt with.
      v27. Unlike the persecutors who hide what they are really about, the disciples must openly proclaim the hidden mysteries of the kingdom of God. It may seem that both satanic and secular powers can frustrate the gospel by confronting Jesus' disciples, but nothing can restrict the gospel, for it is God's will that his message of salvation is available to all who seek him. The disciples can confidently look for opportunities to proclaim the gospel knowing that it will find its mark. So, they should be pro-active in the business of gospelling - proclaim it on the roof tops (the typical flat-topped Palestinian home makes an effective pulpit).
      v28. Continuing with the theme of fear, a second independent saying from Jesus reminds us that fear can be misplaced. There is only so much damage that evil people can do to us. Even Satan has limited powers with which to damage us. Satan is the great deceiver, but that's about the end of it. The real power lies with God; He is the one who can cast us from his presence and hand us over to eternal damnation. Rather than fearing the limited powers of evil people, we would do better to fear (respect) the one who possesses all power. Note Jesus' mention of "hell". "Hell" derives from "gehenna", a smouldering rubbish tip outside Jerusalem, and came to image the place of eschatological punishment. What is destroyed there is the "God-breathed" part of us, the "soul", the eternal divine spark. The context may imply that hell is a place of eternal torment, but annihilation is a better understanding of a person's end without God.
      v29-31. Jesus now gives the final reason why we should not fear the confrontation of the world. God cares for the totality of our lives, from big things to small things. God knows the fate of a sparrow (food for the poor) and even the number of hairs on our head, so he is obviously aware of all our circumstances. The passage may teach that God provides for our practical welfare, but it is more likely saying that he is totally aware of our circumstances, that we are not alone when bad things happen, and that therefore, we should not be afraid. Nothing will happen to you "without your Father knowing", Jerusalem Bible. This passage aligns with Jesus' promise to walk with us in life's journey, to laugh when we laugh and cry when we cry.

Overcoming fear
      Fear is a very real part of human existence. In fact, without fear we would not survive. The fearless person takes too many chances, so aeons ago such people were reduced in the gene pool. They failed to consider the dangers of the wild. So, fear is part of our being human; it is a natural part of our personality.
      The major problem lies with irrational fear. We can become so fearful that we end up debilitated and unable the handle the business of life. We can be so afraid that we are unable to make decisions, even venture outside the home. A person with this condition can easily turn to drugs to make themselves feel better. Often, binge drinking by adolescents is nothing more than a cover for their fear of the crowd, their fear of rejection....
      Fear, for a believer, is increased when we take seriously the Lord's instruction to preach the message of the kingdom. Communicating the gospel can be a dangerous activity. Certainly, Jesus wasn't immune from trouble, and his disciples can expect similar treatment.
      Jesus sought to overcome the fear of his disciples in the business of gospelling by teaching three powerful truths:
        i] The sovereignty of God in evangelism. God will see to it that the message of salvation is never far from the seeker after truth. Jesus is not dependent on us, rather we on him. We therefore don't need to panic about gospelling, get into programming, selling techniques, group dynamics.... to communicate the gospel. We can naturally communicate the truth in line with our circumstances and so minimize community reaction.
        ii] The fear of God in evangelism. We can better deal with evangelistic confrontations when we remind ourselves of all that we possess in Christ. We would be nothing without him and are everything with him. If we are to fear anyone, better to fear Him.
        iii] The care of God in evangelism. When we remind ourselves of our Lord's constant care, his constant participation in our lives, in good times and bad, we are better able to stand up for him. If we are getting a bit of flak because of our faith, it is very encouraging to know that Jesus is totally with us through all the circumstances of life.

v27
      en th/ skotia "in the dark" - in the darkness, night. The intention is probably "in secret"
      en tw/ fwti "in the daylight" - in the light. Again the intention is "in the open", "publicly".
      oJ eiV to ouV akouete "what is whispered in our ear" - what into the ear you hear. "What you have heard in private", TEV. The singular supports the one-to-one nature of the message, therefore, NIV "whispered" is probably best. Unlike the persecutors who hide their evil motivations behind a cloak of self-righteousness, the disciples must proclaim the master's message "on the roof", ie. the roof as a public pulpit.

v28
      mh fobeisqe imp. mid. "do not be afraid" - Given that the following preposition, apo, would normally be translated "from", it is possible that "fear" here is a fear that prompts a person "to flee from what is feared", Lanski. So, "don't run in fear from those who ...."
      twn apoktennontwn (apokteinw) part. "those who kill the body" - the ones killing. The participle as a substantive. "Those who can have you executed."
      ton dunamenon (dunamai) "the One who can" - the one being able. "God" is obviously intended, "you should fear God who can ....", CEV. Bruce suggests "Satan", but this is unlikely.
      yuchn (h) "soul" - The word can mean the inner life, but obviously here referring to the eternal divine spark which only God can extinguish.
      geennh/ (a) "hell" - Gehenna. Gehenna is the name of the valley outside of Jerusalem which served as the city dump. It was constantly burning and the rubbish included dead bodies. The term is used to represent an image like "the fires of destruction", Phillips.

v29
      assariou "penny/cent" - The Roman "as" was one sixteenth of a drachma which represented the normal pay for a day labourer.
      pwleitai (pwlew) "sold" - offer for sale
      aneu "without" - without, apart from. In this usage, without the Father's consent, or will, but probably in a less direct sense, "without your Father knowing", JB.

v30
      uJmwn de "your" - but of you. Emphatic construction. A person is of more value to God than a sparrow. "As for you", REB.
      hriqmhmenai (ariqmew) perf. pas. part. "[are all] numbered" - having been numbered, counted. Perfect possibly serves to underline the continuation of the number, ie. God retains the most insignificant information about us, information we would ignore.