Allah said next,

﴿وَبِعَهْدِ اللَّهِ أَوْفُواْ﴾

(and fulfill the Covenant of Allah.) Ibn Jarir commented, "Allah commands: Fulfill Allah's commandments that He has ordered you. You will do so when you obey Him in what He commanded, refrain from what He prohibited and abide by His Book and the Sunnah of His Messenger . This constitutes fulfilling the covenant of Allah,

﴿ذَلِكُمْ وَصَّـكُمْ بِهِ لَعَلَّكُمْ تَذَكَّرُونَ﴾

(...This He commands you, that you may remember.) Allah says here, that this is what He has ordered and commanded, and He stressed its importance for you,

﴿لَعَلَّكُمْ تَذَكَّرُونَ﴾

(...that you may remember.), that you may be advised and thus refrain from what you used to do before this.''

﴿وَأَنَّ هَـذَا صِرَطِي مُسْتَقِيمًا فَاتَّبِعُوهُ وَلاَ تَتَّبِعُواْ السُّبُلَ فَتَفَرَّقَ بِكُمْ عَن سَبِيلِهِ ذَلِكُمْ وَصَّـكُمْ بِهِ لَعَلَّكُمْ تَتَّقُونَ ﴾

(153. "And verily, this is My straight path, so follow it, and follow not (other) paths, for they will separate you away from His path. This He has ordained for you that you may have Taqwa.")