The Quran

فيهِ آياتٌ بَيِّناتٌ مَقامُ إِبراهيمَ ۖ وَمَن دَخَلَهُ كانَ آمِنًا ۗ وَلِلَّهِ عَلَى النّاسِ حِجُّ البَيتِ مَنِ استَطاعَ إِلَيهِ سَبيلًا ۚ وَمَن كَفَرَ فَإِنَّ اللَّهَ غَنِيٌّ عَنِ العالَمينَ

Muhammad Asad

full of clear messages.¹ [It is] the place whereon Abraham once stood; and whoever enters it finds inner peace.² Hence, pilgrimage unto the Temple is a duty owed to God by all people who are able to undertake it. And as for those who deny the truth - verily, God does not stand in need of anything in all the worlds.

Lit., "in it [are] clear messages" - such as the messages relating to God's oneness and uniqueness (symbolized by the Ka'bah), to the continuity of mankind's religious experience ("the first Temple set up for mankind") and, finally, to the brotherhood of all believers (who, wherever they may be, turn their faces in prayer towards this one focal point).
Or: "is secure" - i.e., in the original sense of amn, which implies "ease of mind and freedom from fear" (cf. Lane I, 100 f.).