"We have the idea that we can dedicate our gifts to God. However, you cannot dedicate what is not yours. There is actually only one thing you can dedicate to God, and that is your right to yourself."This statement could be dismissed as an example of "practical exaggeration", except that other statements that Oswald Chambers writes make it quite clear he means this statement literally. In his view, all of a person's possessions and abilities are merely on-loan from God.
Taken literally, the statement is terrifying in its simplicity. It is much more pleasantly manageable to give a small portion of our right to ourself to God. "I can give up leavened food for Passover." "I can not do this fun activity to get important work done." Etc. But making bargains with ourselves is a part of dieting, not spiritual maturity.
