This hymn expresses the singer's faith and trust in God despite not knowing or understanding fully why God chose them or how their faith was imparted. Over four verses, the singer acknowledges not knowing why God showed grace to them, how their faith was given or peace was brought to their heart, how the Spirit works, or when Jesus may return. However, the refrain emphasizes that they know and are convinced of who they have believed in and that God will keep safe what is committed to him until that final day.