Fearing God is not just an Old Testament doctrine. It was not thrown out with the Incarnation and Crucifixion.
The following NEW TESTAMENT verses affirm the fear of the Lord:
Luke 1:50: “His mercy extends to those who fear him, from generation to generation.”
Luke 12:4-5, where Jesus Himself says: “I tell you, my friends, do not be afraid of those who kill the body and after that can do no more. But I will show you whom you should fear: Fear him who, after the killing of the body, has power to throw you into hell. Yes, I tell you, fear him.”
Acts 9:31: “Then the church throughout Judea, Galilee and Samaria enjoyed a time of peace. It was strengthened; and encouraged by the Holy Spirit, it grew in numbers, living in the fear of the Lord.”
Acts 10:34-35: “Then Peter began to speak: ‘I now realize how true it is that God does not show favoritism but accepts men from every nation who fear him and do what is right.’”
2 Corinthians 5:11: “Since, then, we know what it is to fear the Lord, we try to persuade men. What we are is plain to God, and I hope it is also plain to your conscience.”
Phillipians 2:12-13: “Therefore, my dear friends, as you have always obeyed—not only in my presence, but now much more in my absence—continue to work out your salvation with fear and trembling, for it is God who works in you to will and to act according to his good purpose.”
1 Peter 1:17: “Since you call on a Father who judges each man’s work impartially, live your lives as strangers here in reverent fear.”
1 Peter 2:17: “Show proper respect to everyone: Love the brotherhood of believers, fear God, honor the king.”
Revelation 14:6-7: “Then I saw another angel flying in midair, and he had the eternal gospel to proclaim to those who live on the earth—to every nation, tribe, language and people. He said in a loud voice, ‘Fear God and give him glory, because the hour of his judgment has come. Worship him who made the heavens, the earth, the sea and the springs of water.’”
Revelation 15:4: “Who will not fear you, O Lord, and bring glory to your name? For you alone are holy. All nations will come and worship before you, for your righteous acts have been revealed.”
Revelation 19:5: “Then a voice came from the throne, saying: ‘Praise our God, all you his servants, you who fear him, both small and great!’”
It is good to wrestle with the concept of “fearing God,” rather than dismiss it as being opposed to loving Him. After all, it is the beginning of wisdom.
In order for you to follow what Jesus said are the two most important commandments, Love would have to equal fear.
In all of the scriptures where the original word translates to “reverence” you can substitute the word “Love” and it will not change the meaning.