I may not be, but i'll try.

I can't promise that the sky will remain clear tomorrow, but i can promise that i'll shelter you in times of rain;
I can't promise to be there always, but i can promise that i will whenever i can,
I can't promise that you will not fall, but i can promise that i will help you up;
I can't promise that you will not cry, but i can promise that i will wipe away your tears,
I can't promise that you will not encounter problems, but i promise that i'll share them with you;

I can't promise that I wun hurt you,
But i promise to make it up to you.

For... this is my promise, to you.