[S] 1 Samuel 13:8-10 --
8 Now he waited seven days, according to the appointed time set by Samuel, but Samuel did not come to Gilgal; and the people were scattering from him. 9 So Saul said, "Bring to me the burnt offering and the peace offerings." And he offered the burnt offering. 10 As soon as he finished offering the burnt offering, behold, Samuel came; and Saul went out to meet him and to greet him.
[O] Saul did wait until the promised time expired and then he took his own actions. So his original intention wasn't to defy God or to disregard Samuel, but his actions resulted in disobedience because he did not hold on to his faith to wait until Samuel (or God) showed up. Also notice how Samuel just showed up as soon as Saul committed his act of disobedience. Why couldn't he have shown up a little sooner?
[A] Since I am generous I may give some lenient amount of time after our "appointed" time of meeting, so if God does not show up until some generous amount of time, I am no different than Saul because since I won't know how much longer to wait I would have to take the Plan B option. But when God makes an appointment with me, I need to realize that He may "seem" late in my own timetable but He is never late in His timing because His timing is all about increasing my faith in Him. So I must not take matters into my own hands but to keep my hands open in surrender, until He shows up.
[P] Dear Father, You have been teaching and molding me lately (as You always had been doing) especially through some situations where I feel like You are late to our appointments and leaving me hanging. I pray that I won't be like Saul but to wait it out with the faith You have allowed me to have in my heart. In Jesus' name I ask. Amen.