Andrew found a humble boy in the crowd whose mom had packed him lunch so he offered his lunch to Jesus.
Explanation:
Andrew trusted God to provide all of his needs and in result they were able to feed 5000 people with only one loaf of bread a fish and some goat cheese. In the end there was leftovers and everyone was full.
Andrew was equally aware of the need so he looked around for an answer. He located a humble lunch that a boy was willing to donate. He admits it is not much to offer given the need, but he offers it anyway.