What is biblical love ?

1 Corinthians 13:4-8 New International Version (NIV)

4 Love is patient, love is kind. It does not envy, it does not boast, it is not proud.5 It does not dishonor others, it is not self-seeking, it is not easily angered, it keeps no record of wrongs. 6 Love does not delight in evil but rejoices with the truth. 7 It always protects, always trusts, always hopes, always perseveres.

8 Love never fails. But where there are prophecies, they will cease; where there are tongues, they will be stilled; where there is knowledge, it will pass away.

1 Corinthians 13:4–8a
(English Standard Version)
Love is patient and kind; love does not envy or boast; it is not arrogant or rude. It does not insist on its own way; it is not irritable or resentful; it does not rejoice at wrongdoing, but rejoices with the truth. Love bears all things, believes all things, hopes all things, endures all things. Love never ends. (ESV)

1 Corinthians 13:4–8a
(New King James Version)
Love suffers long and is kind; love does not envy; love does not parade itself, is not puffed up; does not behave rudely, does not seek its own, is not provoked, thinks no evil; does not rejoice in iniquity, but rejoices in the truth; bears all things, believes all things, hopes all things, endures all things. Love never fails. (NKJV)

1 Corinthians 13:4–8a
(King James Version)
Charity suffereth long, and is kind; charity envieth not; charity vaunteth not itself, is not puffed up, Doth not behave itself unseemly, seeketh not her own, is not easily provoked, thinketh no evil; Rejoiceth not in iniquity, but rejoiceth in the truth; Beareth all things, believeth all things, hopeth all things, endureth all things. Charity never faileth. (KJV)

The qualities of christian love.

This love is a clear proof of regeneration, and is a touchstone of our professed faith in Christ. Here follows a description of love. Descriptions of positive characteristics and negations of evil qualities are now employed by the Apostle Paul in what he would have us believe to be his impossible task of adequately describing true love(Ellicott's Commentary for English Readers).

Love Is Patient

This kind of patient love bears with offenses and is slow to repay or punish those who offend. However, it does not imply indifference, which would ignore an offense. Patient love is often used to describe God (2 Peter 3:9).

Love Is Kind

Kindness is similar to patience but refers to how we treat others. It especially implies a love that reacts with goodness towards those who have been ill-treated. This kind of love may take the form of a gentle rebuke when careful discipline is needed.

Love Does Not Envy

This kind of love appreciates and rejoices when others are blessed with good things and does not allow jealousy and resentment to take root. This love is not displeased when others experience success.

Love Does Not Boast

The word "boast" here means "bragging without foundation." This kind of love does not exalt itself over others. It recognizes that our achievements are not based on our own abilities or worthiness.

Love Is Not Proud

This love is not overly self-confident or insubordinate to God and others. It is not characterized by a sense of self-importance or arrogance.

Love Is Not Rude

This kind of love cares about others, their customs, likes, and dislikes. It respects the concerns of others even when they are different from our own. It would never act dishonorably or disgrace another person.

Love Is Not Self-Seeking

This kind of love puts the good of others before our own good. It places God first in our lives, above our own ambitions. This love does not insist on getting its own way.

Love Is Not Easily Angered

Like the characteristic of patience, this kind of love does not rush toward anger when others do us wrong. This love does not hold a selfish concern for one's own rights.

Love Keeps No Record of Wrongs

This kind of love offers forgiveness, even when offenses are repeated many times. It is a love that doesn't keep track of every wrong thing that people do and hold it against them.

Love Does Not Delight in Evil But Rejoices With the Truth

This kind of love seeks to avoid involvement in evil and helps others steer clear of evil, too. It rejoices when loved ones live according to truth.

Love Always Protects

This kind of love will always expose the sin of others in a safe way that won't bring harm, shame, or damage, but will restore and protect.

Love Always Trusts

This love gives others the benefit of the doubt, sees the best in others, and trusts in their good intentions.

Love Always Hopes

This kind of love hopes for the best where others are concerned, knowing God is faithful to complete the work he started in us. This hope filled love encourages others to press forward in the faith.

Love Always Perseveres

This kind of love endures even through the most difficult trials.

Love Never Fails

This kind of love goes beyond the boundaries of ordinary love. It is eternal, divine, and will never cease.

(https://www.thoughtco.com/love-is-patient-love-is-kind-bible-verse-701342)

How good-natured and amiable is Christian LOVE! How excellent would Christianity appear to the world, if those who profess it were more under this Divine principle, and paid due regard to the command on which its blessed Author laid the chief stress! Let us ask whether this Divine love dwells in our hearts. Has this principle guided us into becoming behaviour to all men? Are we willing to lay aside selfish objects and aims? Here is a call to watchfulness, diligence, and prayer.