Allah reminds Quraysh how He blessed them by granting them access to His sanctuary which He has made (open) to (all) men, the dweller in it and the visitor from the country are equal there, and whoever enters it is safe, because he is in a place of great security, although the Arabs of the desert round about used to ambush and raid one another and kill one another. As Allah says:
(For the protection of the Quraysh. The caravans to set forth safe in winter and in summer. So let them worship the Lord of this House. Who has fed them against hunger, and has made them safe from fear.) (106:1-4)
وَالَّذِينَ جَاهَدُوا فِينَا لَنَهْدِيَنَّهُمْ سُبُلَنَا (And those who strive in Our way We will certainly take them to Our paths - 69). The real meaning of jihad is to put in all efforts to remove the hurdles in the way of faith. These hurdles include those that are put up by the infidels, for which fighting is at the top pedestal, and also those hurdles that are created by one's own Self and by Shaitan.
There is a promise in this verse for both types of jihad, that Allah Ta’ ala guides those waging jihad to the righteous way. It means that when there is a 'confusion between evil and virtue, truth and false, and profit or loss, and a wise person wonders which way to adopt, on such occasions Allah Ta’ ala guides those striving in His way to the path which is straight, righteous and without risk. In other words, He turns their hearts toward a way that may bring the divine blessing and the best results.
Knowledge improves if it is acted upon
Sayyidna Abu Ad-Darda' ؓ while interpreting this verse has said that the people who strive for acting in accordance with their knowledge are promised by Allah Ta’ ala in this verse that He will disclose to them some other areas of knowledge that they did not have before. Fudayl Ibn ` Iyad (رح) has given yet another interpretation to this verse, that is, ` those who strive for knowledge, We make it easy for them to act'. (Mazhari). وَاللہُ سبحانَہُ و تعالیٰ اَعلَم
Tazkirul Quran
Maulana Wahiduddin Khan
The Sacred House of Makkah, i.e. the Kabah, is a wonderful gift of Almighty God. God fills the hearts of people with awe whenever they see it, so that even the overbearing and arrogant drop their evil ways on reaching there. This sanctity of the Kabah was one of the signs of God’s power. It called for people to open their hearts to God. But what the worshippers of falsehood did was to ascribe God’s attributes to entities other than God and wrongly divert people’s instinct of devotion towards them. But even worse, when the Prophet Muhammad advised them to renounce the imaginary gods and bow down before the one real God, they became hostile to him. In such an atmosphere the loss suffered by the believers in the world is more than made up for by the rewards bestowed on them by God. Distancing themselves from material comforts, they come closer to the state of spiritual experience. The outward glitter of things is no longer in view, but the inner realities of things are laid bare to them.
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.