The meaning of Jehovah Jireh is the Lord will provide. This means the Lord's provision is certain. David had a lot of experiences of the Lord's provision and they reflect in his many Psalms.
The Almighty God is never too late because He is always on time. If the Almighty God had not shown up on time for the widow of Zarephath, as seen in 1 Kings 17:12-16, probably she might her killed her child for food just like the story of the woman who came to Solomon.
However, for the Lord to come to your aid, you need to have the same spiritual assurance demonstrated by the widow. One of her qualities is that she believed in the God of Prophet Elijah. The widow knew that the God Prophet Elijah served is alive. She knew what the Almighty God could do. She trusted in Him absolutely and this made to obey Prophet Elijah's instructions. Her simple obedience led to her enjoy thereafter.
If we believe in the Lord, it will definitely show in how we go about our lives. We wouldn't doubt His word and so would act in faith to His instructions.
We wouldn't indulge to achieve success in life because the word of God says Whosoever believes in him shall not be ashamed. The Almighty God who provided for Abraham will surely provide even in times of trouble.
The widow in 1 Kings 17:12-16 was a woman of faith who believed in the God of Israel and she showed this plainly through her respect for Prophet Elijah. Do you hold the Lord in high esteem? If you do, it will obvious in how you treat your leader and the person say.