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Love: undeserved - Joseph’s love for his brethren.
Genesis 50:17 ‘Thus you shall say to Joseph: "I beg you, please forgive the trespass of your brothers and their sin; for they did evil to you."’ Now, please, forgive the trespass of the servants of the God of your father." And Joseph wept when they spoke to him. 18 Then his brothers also went and fell down before his face, and they said, "Behold, we are your servants." 19 Joseph said to them, "Do not be afraid, for am I in the place of God? 20 "But as for you, you meant evil against me; but God meant it for good, in order to bring it about as it is this day, to save many people alive. 21 "Now therefore, do not be afraid; I will provide for you and your little ones." And he comforted them and spoke kindly to them.
Love: undeserved + self sacrifice - Moses’ love for Israel.
Exodus 32:30 Now it came to pass on the next day that Moses said to the people, "You have committed a great sin. So now I will go up to the LORD; perhaps I can make atonement for your sin." 31 Then Moses returned to the LORD and said, "Oh, these people have committed a great sin, and have made for themselves a god of gold! 32 "Yet now, if You will forgive their sin—but if not, I pray, blot me out of Your book which You have written."
Love: self sacrifice - Ruth’s love for Naomi.
Ruth 1:16 But Ruth said: "Entreat me not to leave you, Or to turn back from following after you; For wherever you go, I will go; And wherever you lodge, I will lodge; Your people shall be my people, And your God, my God. 17 Where you die, I will die, And there will I be buried. The LORD do so to me, and more also, If anything but death parts you and me."
Love: self sacrifice – Jonathan’s love for David.
1 Samuel 23:17 And he said to him, "Do not fear, for the hand of Saul my father shall not find you. You shall be king over Israel, and I shall be next to you. Even my father Saul knows that." 18 So the two of them made a covenant before the LORD. And David stayed in the woods, and Jonathan went to his own house.
Love: self sacrifice - Esther’s love for Mordecai and her people.
Esther 4:15 Then Esther told them to reply to Mordecai: 16 "Go, gather all the Jews who are present in Shushan, and fast for me; neither eat nor drink for three days, night or day. My maids and I will fast likewise. And so I will go to the king, which is against the law; and if I perish, I perish!"
Love: undeserved + self sacrifice – Christ’s love for his bride.
John 15:13 "Greater love has no one than this, than to lay down one’s life for his friends. 14 "You are My friends if you do whatever I command you.
I hope this helps.