Appointment now (beforehand) of your future. It’s a guaranteed action into the future of the believer if they follow after the knowledge of that calling or

appointment. It develops hope [the divine guarantee, the confident expectation] to which He has called you, the riches of His glorious inheritance in the saints (God’s people), This comes from Eph 1:18 Amp
Predestination is, most times, is looked at as a fated future that will happen regardless of what path we take. Well, that may have a ring of truth to it in a way. God’s path for an individual is charted by His calling on that life.
In Him also we have received an inheritance [a destiny—we were claimed by God as His own], having been predestined (chosen, appointed beforehand) according to the purpose of Him who works everything in agreement with the counsel and design of His will Eph 1:11 Amp
Then there is “free will” involved. The individual has choices. So how does this play out?
“O if only you would actually pay attention to my commandments! Then your peace would become just like a river.” Isaiah 48:18
“All that your hand finds to do, do with your very power.” Ecc: 9:10
The Bible also says: “The plans of the diligent one surely make for advantage.” Prov. 21:5
Free will is a precious gift from God, for it lets us love him with our “whole heart”—because we want to.
He said to him: “‘You must love Jehovah your God with your whole heart and with your whole soul and with your whole mind.’ Matt 22:37
I love the description of “commandment” in verse 36. It says of it as an “authoritative prescription”. Just what the doctor ordered, I’d say. I’m going to leave that for you to go back and look at.
God does have a plan for your life. To me “plan” is another way of saying predestination, yet we have free will to make the choice to follow it . . .or not.
If it is unacceptable in your sight to serve the Lord, choose for yourselves this day whom you will serve: whether the gods which your fathers served that were on the other side of the River, or the gods of the Amorites in whose land you live; but as for me and my house, we will serve the Lord.” Jos 24:15
I chose to follow God, because I know His plan will bring peace to my life and because I want to. So by my free will my life is predestined or as you could say, planned out.