The National Insurance Institute pays a monthly child allowance to families living in Israel who have children up to the age of 18.
The allowance is aimed at helping the family with the expenses entailed in raising their children, and it is paid regardless of the amount of the family's income, on every 20 of the month.
In most cases, the allowance is paid automatically, according with the information transferred to the NII by the hospital after the birth.
For your convenience, here is a calculator of the amount of child allowance (in Hebrew) to which you are entitled.