Am going to assume you know the importance of 1 Corinthians Chapter 13 - it is called the "Love Chapter." Just to refresh your memory, this is how it goes:
1 Corinthians 13 New International Version (NIV)
1 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.
2 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.
3 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.
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.
9 For we know in part and we prophesy in part,
10 but when completeness comes, what is in part disappears.
11 When I was a child, I talked like a child, I thought like a child, I reasoned like a child. When I became a man, I put the ways of childhood behind me.
12 For now we see only a reflection as in a mirror; then we shall see face to face. Now I know in part; then I shall know fully, even as I am fully known.
13 And now these three remain: faith, hope and love. But the greatest of these is love.
Being a Sunday school teacher is a challenging and thankless job. Now, here is a teacher's paraphrase based on the 'Love Chapter'. It is worth posting on the classroom wall.
If I could explain everything perfectly to my students, but did not love each one of them, I might as well be talking to an empty room. If I could find all the answers to educational problems and did not love, my efforts would be futile. If I could buy every kind of educational aid and sacrificed to do so, but did not have love for my students, it would be a complete waste.
Love is patient when it is necessary to repeat a concept over and over to a student who is having difficulty. Love is kind when an irate parent accuses and berates other teachers or me. Love is not jealous when the other teacher has an entire class of well-behaved and extremely intelligent children while mine are not so great.
Love is not proud or boastful when my students improve greatly and really want to come to my class. Love is willing to yield my schedule and plans to fit in with the needs of others. Love does not scream at my class when they misbehave, but seeks to help them understand the importance of self-discipline.
Love does not broadcast all of my students' problems and misdeeds to those in the lounge. Love keeps trying even when it seems a student will never understand long division or the difference between an adverb and an adjective.
Teaching methods, bulletin boards, textbooks, yes, even computers, will eventually be discarded, but love is everlasting. These three things I have learned through teaching: endurance, patience and love. And the greatest of these is love.