Definitions of commit:

• verb:   cause to be admitted; of persons to an institution

  Example: "After the second episode, she had to be committed"

• verb:   perform an act, usually with a negative connotation
• verb:   make an investment
• verb:   give entirely to a specific person, activity, or cause

  Example: "She committed herself to the work of God"

• verb:   confer a trust upon

  Example: "I commit my soul to God"