posvećivati

1. (+ acc. + dat.) to devote; to give
   Mnogo vremena posvećuje deci. — He devotes a lot of time to his children.
   Ne posvećujemo dovoljno pažnje zdravlju. — We don't pay enough attention to our health.
2. (posvećivati se + dat.) to devote oneself; to dedicate oneself
   Poslednjih godina se posvećuje samo karijeri. — In recent years she has devoted herself only to her career.
3. (of a book, song) to dedicate
   Svaki svoj roman posvećuje supruzi. — He dedicates each of his novels to his wife.
4. (in religion) to consecrate
   Crkve se obično posvećuju nekom svecu. — Churches are usually consecrated to a saint.

The person or thing something is devoted to goes in the dative: posvećivati pažnju poslu.