(Verse 6) - The idea here is that Jesus fulfilled the task God gave Him to do with the disciples. God sent Christ to accomplish several goals. One of those goals was to take a group of men whom God had called out of the world and teach them the truth about Who the Father was and what He was really like. At this point in Christ's career He has finished that work completely, as He says in the next verse. That task was completed and He was ready to move on to the next task.

This is related to the idea earlier of Him finishing the task of securing salvation for those whom God gave Him to save. The same language is used for both. Note the use of the same phrase have given me here in regard to the choosing of the disciples. It is the same phrase as was used a verse or two ago in regard to those given to Christ to save. Just as Christ finished completely and satisfactorily the task of training the disciples, so also will He complete the task of saving those whom God gave Him in the same full and complete fashion.

Note the tense of this phrase is past. The giving here is an accomplished fact from the point of view of the speaker. These were given to Christ prior to the time that Christ was speaking. This transaction is finished, it is not awaiting completion. Many think that it awaits completion and is not accomplished until the sinner completes the the transaction. That would obviously be in contradiction of this (and other) passage.

Given itself is an interesting word as well. It is the same word that elsewhere refers to the giving of salvation to the elect children of God. We like to make that a conditional giving dependent on the response of men. This very obviously is not the way it is used here.

They were yours means that they were chosen God for the purpose of being disciples. All men are God's to do with as He pleases. These, He chose to make disciples. The point here is that God had chosen them out of the larger group and had given them special place and privilege.

Manifested is a word meaning to make known, reveal, or make evident. The tense is past and indicates a finished action. The action is finished and accomplished.

Manifested Your Name is an interesting phrase. Again, the point here is that God had given Christ a job to do with the training of the disciples. That job was completely and effectively accomplished. The intent is that we understand that Christ will also complete and secure the job of saving the ones God gave Him to save as well. 

(Verse 7) - This verse underscores the point that, just as the disciples were shown that all that Christ had was of God, so also is the work of salvation all of God as well. It cannot be stated strongly enough how very important this concept truly is. The pride and arrogance that flows out of the taking of credit for salvation is truly terrifying. Thinking honestly we must admit that such pride is truly frightening. At this pivotal point in the development of the disciples we see the Lord emphasize this idea to them. That cannot be an accident.

How do those facts apply to my life?:

It is important that I understand that salvation is of God. Jesus was sent to accomplish a definite task. This He did completely and certainly. That Christ accomplished His work  for God in these areas was a part of His faithfulness to God. Proclaiming it as truth is a part of ours.