The iron rod is the word of God. What is the word of God? The scriptures, the prophets, our own revelations or all three together? The iron rod consists of all three. If we use only one, we will get off the path. Using only scriptures will make us fail, but without reading the scriptures and learning about prayer, faith etc. we most probably won’t receive any revelations. Words in the scripture will help us, Christ, the Word, will save us. Giving heed to THE WORD might be more important than to simply give heed to the words. Also, Lehi got to the tree without holding to the rod at all but by mighty prayer which dispelled the darkness around him so he could see.