John 13:34-35

““A new command I give you: Love one another. As I have loved you, so you must love one another. By this everyone will know that you are my disciples, if you love one another.””

source https://www.biblegateway.com/passage/?search=John%2013:34-35&version=NIV

1 Corinthians 13:1-3

“If I speak in the tongues of men or of angels, but do not have love, I am only a resounding gong or a clanging cymbal. If I have the gift of prophecy and can fathom all mysteries and all knowledge, and if I have a faith that can move mountains, but do not have love, I am nothing. If I give all I possess to the poor and give over my body to hardship that I may boast, but do not have love, I gain nothing.”

source https://www.biblegateway.com/passage/?search=1%20Corinthians%2013:1-3&version=NIV